不知道哪里发帖，请教一下专业的福友。

Machine generated alternative text:

Gate Valve assembly 3.1/8“ -5M upgraded 6.5M

All wetted surface cladded with Inconel 625

- Working Pressure - 6500 Psi

- Stamp on both flanges

3.1/8? 5000 psi R35 - WP 6500 Psi

- Acc. API 6A

- Nace MR 0175/ ISO 15156

- full bore

- non rising stem

-back seat

-Complete with handwheel

-Material: Forged 75k

-Material Class: HH -NL

-Temperature Class: U

-PSL:3G

-PR :2 (Certificate to be provided).

-Pressure test acc. to API 6A PSL 3G PR 2

-Coating with primer (Zinc Ethyl Silicate)

-Certificate: EN 10204.2004-3.1

-Material : (Full traceability ) for mechanical

properties heat treatment and chemical

composition.

这个产品不是本人正在的，所以不了解，如果知道的请不吝赐教！