久久久WWW影院人成,揉捏新婚少妇高耸的双乳,欧美午夜视频一区二区三区,国产精品福利片在线观看

產(chǎn)品展示導航下方圖片

The Current position >Home > Products > SAFELOK VALVES > NEEDLE VALVES

1. Pressure rating 6000psi standard 10,000psi on request.

2. The valve body designed according to ASME VⅢ DIVISION 1 Standard, the material meet the requirement of  ASTM concerning THE POWER STATION.

3. Standard design of stellite trim, Other alternative materials available on request.

4. Gland packing Graphoil(648) or PTFE(225) .

5. Safe bonnet design.

6. Internally loaded blow-out proof stem.

7. Non-rotating stem tip.

8. Rolled machined spindle drive thread.

9. 416ss Gland retainer.

10. Drive thread is up the gland seal, gland seal completely isolate with the drive thread.

11. Back pressure seal function.

12. Low-in & high-out flow type.