Oleo Tecnica

Plumbing & Sanitary

plumbing-sanitary

Flanges

flanges

Oleo Tecnica Carbon Steel ST52.3 Sae 90 1 1/2” With Nbr O-Ring  SAE-H-IT-N-6-L-14

     Oleo Tecnica Carbon   Steel ST52.3 SAE 90 Degree Elbow Flange, Code 62 6000 PSI, 1 1/2” NPT O-Ring   Side, with NBR O-Ring, SAE J518 Standard    

Excellent capability to perform in high working pressure environment as it has a working pressure up to 6000 PSI

Minimum effort needed to tighten the flanges as four bolt flange requires lower tightening torque in comparison with other types of flanges of equivalent size

High durability & strength as bodies are made from normalized forgings. Normalization increases the strength and hardness of the flanges

Protection against leakage as it contains a groove seat to place rubber o-ring for reliable soft sealing. Socket weld (weld in) connection

Made of steel ST52.3 material and conforms to SAE J518 and ISO 6162 standards

<h3 class="md-block-header-three"><strong class="md-inline-bold">Oleo Tecnica Carbon Steel ST52.3 Sae 90 1 1/2” With Nbr O-Ring  SAE-H-IT-N-6-L-14</strong></h3><ul class="md-block-unordered-list-item"><li>     Oleo Tecnica Carbon   Steel ST52.3 SAE 90 Degree Elbow Flange, Code 62 6000 PSI, 1 1/2” NPT O-Ring   Side, with NBR O-Ring, SAE J518 Standard    </li><li>Excellent capability to perform in high working pressure environment as it has a working pressure up to 6000 PSI</li><li>Minimum effort needed to tighten the flanges as four bolt flange requires lower tightening torque in comparison with other types of flanges of equivalent size</li><li>High durability &amp; strength as bodies are made from normalized forgings. Normalization increases the strength and hardness of the flanges</li><li>Protection against leakage as it contains a groove seat to place rubber o-ring for reliable soft sealing. Socket weld (weld in) connection</li><li>Made of steel ST52.3 material and conforms to SAE J518 and ISO 6162 standards</li></ul>

<h3><strong>Oleo Tecnica Carbon Steel ST52.3 Sae 90 1 1/2” With Nbr O-Ring  SAE-H-IT-N-6-L-14</strong></h3>
<ul>
<li>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Oleo Tecnica Carbon   Steel ST52.3 SAE 90 Degree Elbow Flange, Code 62 6000 PSI, 1 1/2” NPT O-Ring   Side, with NBR O-Ring, SAE J518 Standard&nbsp;&nbsp;&nbsp;&nbsp;</li>
<li>Excellent capability to perform in high working pressure environment as it has a working pressure up to 6000 PSI</li>
<li>Minimum effort needed to tighten the flanges as four bolt flange requires lower tightening torque in comparison with other types of flanges of equivalent size</li>
<li>High durability &amp; strength as bodies are made from normalized forgings. Normalization increases the strength and hardness of the flanges</li>
<li>Protection against leakage as it contains a groove seat to place rubber o-ring for reliable soft sealing. Socket weld (weld in) connection</li>
<li>Made of steel ST52.3 material and conforms to SAE J518 and ISO 6162 standards</li>
</ul>


AFS40590N Technical Sheet

AF Hydro

RFS Hydraulics

BOTHWELL

LAME

Stauff

Others

MJ Technos

LY Metal

Pipe Clamps

Pipe Coupling

Ferrule Fittings

Pipe Adaptor

Pipe Elbow

Pipe Nipple

Pipe Tee

Camlock Fittings

Copper Tubing

Kelvin How

buyerIntroduction

Oleo Tecnica Carbon Steel ST52.3 Sae 90 Degree Elbow Flange, Code 62 6000 Psi, 1 1/2" Npt O-Ring Side, With Nbr O-Ring, Sae J518 Standard

oleo tecnica carbon steel st52.3 sae 90 degree elbow flange, code 62 6000 psi, 1/2" npt o-ring side, nbr o-ring, j518 standard 1/2” dengan sae-h-it-n-6-l-14 flanges tecnica/oleo 机械油 碳钢 型圈

oleo-tecnica-carbon-steel-st52-3-sae-90-degree-elbow-flange-code-62-6000-psi-1-1-2-npt-o-ring-side-with-nbr-o-ring-sae-j518-standard

Oleo Tecnica Carbon Steel ST52.3 Sae 90 Degree Elbow Flange, Code 62 6000 Psi, 1 1/4 Npt O-Ring Side, With Nbr O-Ring, Sae J518 Standard

Carbon Steel ST52.3 Sae 90 Degree Elbow Flange, Code 62 6000 Psi, 1 1/4 Npt O-Ring Side, With Nbr O-Ring, Sae J518 Standard

Excellent capability to perform in high working pressure environment as it has a working pressure up to 3000 PSI

Protection against leakage as it contains a groove seat to place rubber o-ring for reliable soft sealing.

Female NPT threaded connection. Made of steel ST52.3 material and conforms to SAE J518 and ISO 6162 standards

<h3 class="md-block-header-three"><strong class="md-inline-bold">Oleo Tecnica Carbon Steel ST52.3 Sae 90 Degree Elbow Flange, Code 62 6000 Psi, 1 1/4 Npt O-Ring Side, With Nbr O-Ring, Sae J518 Standard</strong></h3><p class="md-block-unstyled">Carbon Steel ST52.3 Sae 90 Degree Elbow Flange, Code 62 6000 Psi, 1 1/4 Npt O-Ring Side, With Nbr O-Ring, Sae J518 Standard</p><p class="md-block-unstyled"><strong class="md-inline-bold">About this item</strong></p><ul class="md-block-unordered-list-item"><li>Excellent capability to perform in high working pressure environment as it has a working pressure up to 3000 PSI</li><li>Minimum effort needed to tighten the flanges as four bolt flange requires lower tightening torque in comparison with other types of flanges of equivalent size</li><li>High durability &amp; strength as bodies are made from normalized forgings. Normalization increases the strength and hardness of the flanges</li><li>Protection against leakage as it contains a groove seat to place rubber o-ring for reliable soft sealing.</li><li>Female NPT threaded connection. Made of steel ST52.3 material and conforms to SAE J518 and ISO 6162 standards</li></ul><p class="md-block-unstyled"><strong class="md-inline-bold">Technical Spec</strong></p><ul class="md-block-unordered-list-item"><li>Netto Weight 1.500 KG</li><li>Height Dimension 10.000</li><li>Length Dimension 10.000</li><li>Width Dimension 10.000</li><li>Dimension uom 10.000</li></ul>

<h3><strong>Oleo Tecnica Carbon Steel ST52.3 Sae 90 Degree Elbow Flange, Code 62 6000 Psi, 1 1/4 Npt O-Ring Side, With Nbr O-Ring, Sae J518 Standard</strong></h3>
<p>Carbon Steel ST52.3 Sae 90 Degree Elbow Flange, Code 62 6000 Psi, 1 1/4 Npt O-Ring Side, With Nbr O-Ring, Sae J518 Standard</p>
<p><strong>About this item</strong></p>
<ul>
<li>Excellent capability to perform in high working pressure environment as it has a working pressure up to 3000 PSI</li>
<li>Minimum effort needed to tighten the flanges as four bolt flange requires lower tightening torque in comparison with other types of flanges of equivalent size</li>
<li>High durability &amp; strength as bodies are made from normalized forgings. Normalization increases the strength and hardness of the flanges</li>
<li>Protection against leakage as it contains a groove seat to place rubber o-ring for reliable soft sealing.</li>
<li>Female NPT threaded connection. Made of steel ST52.3 material and conforms to SAE J518 and ISO 6162 standards</li>
</ul>
<p><strong>Technical Spec</strong></p>
<ul>
<li>Netto Weight 1.500 KG</li>
<li>Height Dimension 10.000</li>
<li>Length Dimension 10.000</li>
<li>Width Dimension 10.000</li>
<li>Dimension uom 10.000</li>
</ul>


AFS40490N Technical Sheet

Oleo Tecnica Carbon Steel ST52.3 Sae 90 Degree Elbow Flange, Code 62 6000 Psi, 1 1/4" Npt O-Ring Side, With Nbr O-Ring, Sae J518 Standard

oleo tecnica carbon steel st52.3 sae 90 degree elbow flange, code 62 6000 psi, 1/4" npt o-ring side, nbr o-ring, j518 standard derajat siku flange dengan sae-h-it-n-6-l-12 flanges darjah bebibir tecnica/oleo 机械油 碳钢 度弯头法兰，带 型圈

oleo-tecnica-carbon-steel-st52-3-sae-90-degree-elbow-flange-code-62-6000-psi-1-1-4-npt-o-ring-side-with-nbr-o-ring-sae-j518-standard

Oleo Tecnica Carbon Steel ST52.3 Sae 90 Degree Elbow Flange, Code 62 6000 Psi, 3/4 Bspp O-Ring Side, With Nbr O-Ring, Sae J518 Standard

Carbon Steel ST52.3 Sae 90 Degree Elbow Flange, Code 62 6000 Psi, 3/4 Bspp O-Ring Side, With Nbr O-Ring, Sae J518 Standard

<h3 class="md-block-header-three"><strong class="md-inline-bold">Oleo Tecnica Carbon Steel ST52.3 Sae 90 Degree Elbow Flange, Code 62 6000 Psi, 3/4 Bspp O-Ring Side, With Nbr O-Ring, Sae J518 Standard</strong></h3><p class="md-block-unstyled">Carbon Steel ST52.3 Sae 90 Degree Elbow Flange, Code 62 6000 Psi, 3/4 Bspp O-Ring Side, With Nbr O-Ring, Sae J518 Standard</p><p class="md-block-unstyled"><strong class="md-inline-bold">About this item</strong></p><ul class="md-block-unordered-list-item"><li>Excellent capability to perform in high working pressure environment as it has a working pressure up to 6000 PSI</li><li>Minimum effort needed to tighten the flanges as four bolt flange requires lower tightening torque in comparison with other types of flanges of equivalent size</li><li>High durability &amp; strength as bodies are made from normalized forgings. Normalization increases the strength and hardness of the flanges</li><li>Protection against leakage as it contains a groove seat to place rubber o-ring for reliable soft sealing.</li></ul><p class="md-block-unstyled"><strong class="md-inline-bold">Technical Spec</strong></p><ul class="md-block-unordered-list-item"><li>Netto Weight 1.000 KG</li><li>Height Dimension 7.100</li><li>Length Dimension 5.500</li><li>Width Dimension 3.500</li><li>Dimension uom 5.500</li></ul>

<h3><strong>Oleo Tecnica Carbon Steel ST52.3 Sae 90 Degree Elbow Flange, Code 62 6000 Psi, 3/4 Bspp O-Ring Side, With Nbr O-Ring, Sae J518 Standard</strong></h3>
<p>Carbon Steel ST52.3 Sae 90 Degree Elbow Flange, Code 62 6000 Psi, 3/4 Bspp O-Ring Side, With Nbr O-Ring, Sae J518 Standard</p>
<p><strong>About this item</strong></p>
<ul>
<li>Excellent capability to perform in high working pressure environment as it has a working pressure up to 6000 PSI</li>
<li>Minimum effort needed to tighten the flanges as four bolt flange requires lower tightening torque in comparison with other types of flanges of equivalent size</li>
<li>High durability &amp; strength as bodies are made from normalized forgings. Normalization increases the strength and hardness of the flanges</li>
<li>Protection against leakage as it contains a groove seat to place rubber o-ring for reliable soft sealing.</li>
</ul>
<p><strong>Technical Spec</strong></p>
<ul>
<li>Netto Weight 1.000 KG</li>
<li>Height Dimension 7.100</li>
<li>Length Dimension 5.500</li>
<li>Width Dimension 3.500</li>
<li>Dimension uom 5.500</li>
</ul>


AFS40290G Technical Sheet

Oleo Tecnica Carbon Steel ST52.3 Sae 90 Degree Elbow Flange, Code 62 6000 Psi, 3/4" Bspp O-Ring Side, With Nbr O-Ring, Sae J518 Standard

oleo tecnica carbon steel st52.3 sae 90 degree elbow flange, code 62 6000 psi, 3/4" bspp o-ring side, nbr o-ring, j518 standard derajat siku flange dengan sae-h-it-g-6-l-06 flanges darjah bebibir tecnica/oleo 机械油 碳钢 度弯头法兰，带 型圈

oleo-tecnica-carbon-steel-st52-3-sae-90-degree-elbow-flange-code-62-6000-psi-3-4-bspp-o-ring-side-with-nbr-o-ring-sae-j518-standard

Oleo Tecnica Carbon Steel ST52.3 Sae 90 Degree Flange 4-Bolt Flange w/NBR O-Ring SAE-H-IT-SW-6-L-06

     Oleo Tecnica Carbon   Steel ST52.3 SAE 90 Degree Flange Code 62 6000 PSI, 3/4” Socket Weld O-ring   Side, 4-Bolt Flange w/NBR O-Ring, SAE J518 Standard    

3/4" S/W HYDR   SAE FLANGE 90D ELBOW 6000 

<h3 class="md-block-header-three"><strong class="md-inline-bold">Oleo Tecnica Carbon Steel ST52.3 Sae 90 Degree Flange 4-Bolt Flange w/NBR O-Ring SAE-H-IT-SW-6-L-06</strong></h3><ul class="md-block-unordered-list-item"><li>     Oleo Tecnica Carbon   Steel ST52.3 SAE 90 Degree Flange Code 62 6000 PSI, 3/4” Socket Weld O-ring   Side, 4-Bolt Flange w/NBR O-Ring, SAE J518 Standard    </li><li>3/4&quot; S/W HYDR   SAE FLANGE 90D ELBOW 6000 </li><li> ORING SIDE    </li></ul>

<h3><strong>Oleo Tecnica Carbon Steel ST52.3 Sae 90 Degree Flange 4-Bolt Flange w/NBR O-Ring SAE-H-IT-SW-6-L-06</strong></h3>
<ul>
<li>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Oleo Tecnica Carbon   Steel ST52.3 SAE 90 Degree Flange Code 62 6000 PSI, 3/4” Socket Weld O-ring   Side, 4-Bolt Flange w/NBR O-Ring, SAE J518 Standard&nbsp;&nbsp;&nbsp;&nbsp;</li>
<li>3/4" S/W HYDR   SAE FLANGE 90D ELBOW 6000&nbsp;</li>
<li>&nbsp;ORING SIDE&nbsp;&nbsp;&nbsp;&nbsp;</li>
</ul>


AFS40290S Technical Sheet

Oleo Tecnica Carbon Steel ST52.3 Sae 90 Degree Flange Code 62 6000 Psi, 3/4" Socket Weld O-ring Side, 4-Bolt Flange w/NBR O-Ring, Sae J518 Standard

oleo tecnica carbon steel st52.3 sae 90 degree flange code 62 6000 psi, 3/4" socket weld o-ring side, 4-bolt w/nbr o-ring, j518 standard baja karbon derajat baut dengan nbr sae-h-it-sw-6-l-06 flanges keluli bebibir darjah cincin tecnica/oleo 机械油 碳钢 度法兰 螺栓法兰带 型圈

oleo-tecnica-carbon-steel-st52-3-sae-90-degree-flange-code-62-6000-psi-3-4-socket-weld-o-ring-side-4-bolt-flange-w-nbr-o-ring-sae-j518-standard

Oleo Tecnica Carbon Steel ST52.3 Sae 90 Degree Elbow Flange, Code 61 3000 Psi, 3/4 Bspp O-Ring Side, With Nbr O-Ring, Sae J518 Standard

Carbon Steel ST52.3 Sae 90 Degree Elbow Flange, Code 61 3000 Psi, 3/4 Bspp O-Ring Side, With Nbr O-Ring, Sae J518 Standard

Hydraulic O-Ring SAE blind flange. Install at the end of hydraulic systems to block fluids passage

Made of steel ST52.3. Bodies made from normalized forgings

Withstand up to 3000 PSI working pressure. Made in accordance with SAE J518/ ISO 6162 standard

Used in oil hydraulic systems to block fluid passage

<h3 class="md-block-header-three"><strong class="md-inline-bold">Oleo Tecnica Carbon Steel ST52.3 Sae 90 Degree Elbow Flange, Code 61 3000 Psi, 3/4 Bspp O-Ring Side, With Nbr O-Ring, Sae J518 Standard</strong></h3><p class="md-block-unstyled">Carbon Steel ST52.3 Sae 90 Degree Elbow Flange, Code 61 3000 Psi, 3/4 Bspp O-Ring Side, With Nbr O-Ring, Sae J518 Standard</p><p class="md-block-unstyled"><strong class="md-inline-bold">About this item</strong></p><ul class="md-block-unordered-list-item"><li>Hydraulic O-Ring SAE blind flange. Install at the end of hydraulic systems to block fluids passage</li><li>Made of steel ST52.3. Bodies made from normalized forgings</li><li>Withstand up to 3000 PSI working pressure. Made in accordance with SAE J518/ ISO 6162 standard</li><li>Install with flat face SAE flange</li><li>Used in oil hydraulic systems to block fluid passage</li></ul><p class="md-block-unstyled"><strong class="md-inline-bold">Technical Spec</strong></p><ul class="md-block-unordered-list-item"><li>Netto Weight 0.500 KG</li><li>Height Dimension 10.000</li><li>Length Dimension 10.000</li><li>Width Dimension 10.000</li><li>Dimension uom 10.000</li></ul>

<h3><strong>Oleo Tecnica Carbon Steel ST52.3 Sae 90 Degree Elbow Flange, Code 61 3000 Psi, 3/4 Bspp O-Ring Side, With Nbr O-Ring, Sae J518 Standard</strong></h3>
<p>Carbon Steel ST52.3 Sae 90 Degree Elbow Flange, Code 61 3000 Psi, 3/4 Bspp O-Ring Side, With Nbr O-Ring, Sae J518 Standard</p>
<p><strong>About this item</strong></p>
<ul>
<li>Hydraulic O-Ring SAE blind flange. Install at the end of hydraulic systems to block fluids passage</li>
<li>Made of steel ST52.3. Bodies made from normalized forgings</li>
<li>Withstand up to 3000 PSI working pressure. Made in accordance with SAE J518/ ISO 6162 standard</li>
<li>Install with flat face SAE flange</li>
<li>Used in oil hydraulic systems to block fluid passage</li>
</ul>
<p><strong>Technical Spec</strong></p>
<ul>
<li>Netto Weight 0.500 KG</li>
<li>Height Dimension 10.000</li>
<li>Length Dimension 10.000</li>
<li>Width Dimension 10.000</li>
<li>Dimension uom 10.000</li>
</ul>


AFS10090G Technical Sheet

Oleo Tecnica Carbon Steel ST52.3 Sae 90 Degree Elbow Flange, Code 61 3000 Psi, 3/4" Bspp O-Ring Side, With Nbr O-Ring, Sae J518 Standard

oleo tecnica carbon steel st52.3 sae 90 degree elbow flange, code 61 3000 psi, 3/4" bspp o-ring side, nbr o-ring, j518 standard derajat siku flange dengan sae-h-it-g-3-l-06 flanges darjah bebibir tecnica/oleo 机械油 碳钢 度弯头法兰，带 型圈

oleo-tecnica-carbon-steel-st52-3-sae-90-degree-elbow-flange-code-61-3000-psi-3-4-bspp-o-ring-side-with-nbr-o-ring-sae-j518-standard

Oleo Tecnica Carbon Steel ST52.3 Sae 90 Degree Flange   Socket Weld O-ring Side, SAE-H-IT-SW-6-L-10

         Oleo Tecnica Carbon   Steel ST52.3 SAE 90 Degree Flange Code 62 6000 PSI, 1” Socket Weld O-ring   Side, 4-Bolt Flange w/NBR O-Ring, SAE J518 Standard    

  1" S/W HYDR   SAE FLANGE 90D ELBOW 6000

<h3 class="md-block-header-three"><strong class="md-inline-bold">Oleo Tecnica Carbon Steel ST52.3 Sae 90 Degree Flange   Socket Weld O-ring Side, SAE-H-IT-SW-6-L-10</strong></h3><ul class="md-block-unordered-list-item"><li>         Oleo Tecnica Carbon   Steel ST52.3 SAE 90 Degree Flange Code 62 6000 PSI, 1” Socket Weld O-ring   Side, 4-Bolt Flange w/NBR O-Ring, SAE J518 Standard    </li><li>  1&quot; S/W HYDR   SAE FLANGE 90D ELBOW 6000</li><li> ORING SIDE    </li></ul>

<h3><strong>Oleo Tecnica Carbon Steel ST52.3 Sae 90 Degree Flange   Socket Weld O-ring Side, SAE-H-IT-SW-6-L-10</strong></h3>
<ul>
<li>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Oleo Tecnica Carbon   Steel ST52.3 SAE 90 Degree Flange Code 62 6000 PSI, 1” Socket Weld O-ring   Side, 4-Bolt Flange w/NBR O-Ring, SAE J518 Standard&nbsp;&nbsp;&nbsp;&nbsp;</li>
<li>&nbsp;&nbsp;1" S/W HYDR   SAE FLANGE 90D ELBOW 6000</li>
<li>&nbsp;ORING SIDE&nbsp;&nbsp;&nbsp;&nbsp;</li>
</ul>


AFS40390S Technical Sheet

Oleo Tecnica Carbon Steel ST52.3 Sae 90 Degree Flange Code 62 6000 Psi, 1" Socket Weld O-ring Side, 4-Bolt Flange w/NBR O-Ring, Sae J518 Standard

oleo tecnica carbon steel st52.3 sae 90 degree flange code 62 6000 psi, 1" socket weld o-ring side, 4-bolt w/nbr o-ring, j518 standard derajat sisi sae-h-it-sw-6-l-10 flanges darjah tecnica/oleo 机械油 碳钢 度法兰承插焊 型圈侧，sae-h-it-sw-6-l-10

oleo-tecnica-carbon-steel-st52-3-sae-90-degree-flange-code-62-6000-psi-1-socket-weld-o-ring-side-4-bolt-flange-w-nbr-o-ring-sae-j518-standard

Oleo Tecnica Carbon Steel ST52.3 Sae 90 Degree Flange   4-Bolt Flange w/NBR O-Ring SAE-H-IT-SW-6-L-14

     Oleo Tecnica Carbon   Steel ST52.3 SAE 90 Degree Flange Code 62 6000 PSI, 1 1/2” Socket Weld O-ring   Side, 4-Bolt Flange w/NBR O-Ring, SAE J518 Standard    

<h3 class="md-block-header-three"><strong class="md-inline-bold">Oleo Tecnica Carbon Steel ST52.3 Sae 90 Degree Flange   4-Bolt Flange w/NBR O-Ring SAE-H-IT-SW-6-L-14</strong></h3><ul class="md-block-unordered-list-item"><li>     Oleo Tecnica Carbon   Steel ST52.3 SAE 90 Degree Flange Code 62 6000 PSI, 1 1/2” Socket Weld O-ring   Side, 4-Bolt Flange w/NBR O-Ring, SAE J518 Standard    </li><li>1 1/2&quot; S/W   HYDR SAE FLANGE 90D ELBOW </li><li>6000# ORING SIDE    </li></ul>

<h3><strong>Oleo Tecnica Carbon Steel ST52.3 Sae 90 Degree Flange   4-Bolt Flange w/NBR O-Ring SAE-H-IT-SW-6-L-14</strong></h3>
<ul>
<li>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Oleo Tecnica Carbon   Steel ST52.3 SAE 90 Degree Flange Code 62 6000 PSI, 1 1/2” Socket Weld O-ring   Side, 4-Bolt Flange w/NBR O-Ring, SAE J518 Standard&nbsp;&nbsp;&nbsp;&nbsp;</li>
<li>1 1/2" S/W   HYDR SAE FLANGE 90D ELBOW&nbsp;</li>
<li>6000# ORING SIDE&nbsp;&nbsp;&nbsp;&nbsp;</li>
</ul>


AFS40590S Technical Sheet

Oleo Tecnica Carbon Steel ST52.3 Sae 90 Degree Flange Code 62 6000 Psi, 1 1/2" Socket Weld O-ring Side, 4-Bolt Flange w/NBR O-Ring, Sae J518 Standard

oleo tecnica carbon steel st52.3 sae 90 degree flange code 62 6000 psi, 1/2" socket weld o-ring side, 4-bolt w/nbr o-ring, j518 standard baja karbon derajat baut dengan nbr sae-h-it-sw-6-l-14 flanges keluli bebibir darjah cincin tecnica/oleo 机械油 碳钢 度法兰 螺栓法兰带 型圈