ASME/ANSI B16.9, MSS SP-43; DIN2615, DIN2616, DIN2617; JIS B2313, JIS B2220, GOST 17375, GOST 17375; GB/T12459, GB/T13401
Petroleum, chemical industry, nuclear power, shipyard, paper making, bioengineering, dairy industry, food & beverage industry, pharmacy, sewage system, etc.