pressure vessels,boiler (BHW35,A537CL2,A299grB,A841grC,A387Gr11CL2,A516Gr70N+HIC,A515Gr60N,A203GrE,A517grQ), metallic structures(A36,A514GrB/P,S690QL,S890QL,S960Q,S355NL,S460NL,S355J2G3) offshore platform (EQ70,A709Gr100,A572Gr50,A514GrQ,API 2H50T,API 2W60,DNV DH36,EH36,FH36,EH40,FH40,E500). mould steel (S45C,P20,1.2311,1.2312,1.2738,NKA80,S136 ESR, 1.2316,1.2379,1.2344,1.2343,1.2803,1.2080,AISI M2) stainless steel, grades: 304, 304H, 304L, 316,316H,316L, 309S, 310S, 410,410S,17-4PH,2205,904L, 409L, 430,420,347,317L and so on.