Main material WCB, WCC, LCB, CF8, CF8M, CF3, CF3M, CN7M, CF8C, 4A, A105, LF2, F304, F316, F304L, F316L, F321, F51, ect. Pressure rating Class 150 to Class 2500 Standards applied API. ASME, ANSI, NACE, CE/ EN, DIN, JIS, BS, ISO, TS, GB, etc. Operative temperature -196 °C to 980 °C ( -320.8 °F to 1796 °F) Optional operation Manual, Gear, Electric, Pneumatic, Hydraulic. 1). Scale: 82,000.00 square meters non-dust workshop 2). The foundry is built to promise our raw material better before production. 3). Equipment: 350 sets advanced machining facilities, 5 automatic production lines 4). R&D: valve research and design center 5). Strict QC system is set up for the superior quality guarantee. http://www.chasevalve.com