mentation standards :
GB,ASTM/ASMB/ASME SA,EN10217-7,JISG,JISG,DIN11850...
Material (steel grade) :
30403,30408,31603,316L,32168,310S,309S,201,2205,2507,904L,347H,254SMO,316Ti,C276,304H...
Place of Origin :
China, South Korea, Japan, the United States, Germany, Sweden