... DIN 2616, DIN 2617, DIN 28011 stainless steel sch 10 pipe fittings HIGH-PRESSURE, MEDIUM-PRESSURE,LOW-PRESSURE, CARBON STEEL, ALLOY ... , PETROLEUM, CHEMICAL INDUSTRY, MEDICINE, ELECTRIC POWER, ASTRONAUTICS, WAR INDUSTRY, FIRE PREVENTION, METALLURGY, SHIPBUILDING, FUEL GAS, NUCLEAR ELECTRICITY, URBAN CONSTRUCTION, HOT ... 105 staffs including 5 senior engineers.] stainless steel sch80 pipe fittings