... . DIN2616. DIN2617Class Rating1500#, 2500# , 3000#, 6000#, 9000#Manufacturing processPush, Press, Forge, Cast, etc.Materials:ASTM A182F 304, ... -corrosion and high-temperature resistant with black painting(3) All the production process are made under the ISO9001:2000 ... strictly.Welcome to contact us. Zhengzhou Huitong Pipe Fittings Co.,Ltd (32 years manufacturing ...