SS304 Screwed Type NPT Ball Valves, Class 150#, ANSI STANDARDS 1. Material: Stainless Steel 2. ... , 347H, 317L, ... SpecificationSS304 Screwed Type NPT Ball Valves, Class 150#, ANSI STANDARDS Screwed Type NPT Ball Valves1)materail:SS304,SS316,CF8M,CF82 ... locked handStandards1)design and manufacture stand:API608/API607/API6D,BS53512)face to face std:API B16.10,API607,API 6D,DIN32023)End ...