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(1)low temperature use:ASTM A333,grade of steel:GR.A,GR.1,GR.6,GR.7,GR.3,specification:1/4″-28″,13.7-711.2mm
(2)steel seamless pipe for general application :ASTM A53 GR.B,grade of steel:SA53 B,specification:1/4″-28″,13.7-711.2mm.
(3)high temperature use:A106/A53/API 5L GR.B,grade of steel:B,specification:1/4″-28″,13.7-711.2mm.
(4)DIN2448/1629 seamless pipe:grade of steel:St37,St44,St52,specification:1/4″-28″,13.7-711.2mm.
(5)heat exchanger and condensator:ASTM A179,application:3/4″,1″6.-40℃-101℃
(6)refractory steelDIN17175-1979:grade of steel:carbon structural steel:St35.8-St45.8/I,St35.8-St45.8/III,alloy constructional steel:15Mo3,13CrMo44,10CrMo910,specification:1/4″-28″,13.7-711.2mm.




