(1) Standards:
Standard for malerials and wielding from Chinese classifying society Chinese clasifying society(CCS)
Standard of DNV Det Norske Veritas(DNV)
Standard of Lloyd S Register of UK(LR) Lloyd S Register of UK(LR)
Standard of Germanischer Lloyd Germanischer Lloyd(GL)
Standard of American Bureau of Shipping(ABS)American Bureau of Shipping(ABS)
Standard of BUREAU VERITAS(BV)BUREAU VERITAS(BV)
Standard of RINA Italian classification society(RINA)
GB/T5312 Chinese national standard
(2) Appication
Seamless steel tubes for manufacturing marine boilers and ovemeaters as we as pressure pipes of grade I and
(3) Grade: 320,360,410,460,490,etc.
(4) Size: OD from 140mm to 630mm, WT from 6mm to 80mm