SS304 Screwed Type NPT Ball Valves, Class 150#, ANSI STANDARDS 1. Material: Stainless Steel 2. Connection: ... in 2007, we have devoted to providing the best solutions of stainless materials and industrial equipment for our respected customers. ... stainless 310H, 347H, 317L, ... SpecificationSS304 Screwed Type NPT Ball Valves, Class 150#, ANSI STANDARDS Screwed Type NPT Ball Valves1)materail:SS304 ...