Duplex/Super Duplex pipe - S31803.S32740.S32750

stainless steel pipes(the meterial include as below)
Austenitic:304.304L.321.316L.316Ti.317L.309H.310S.347H.XM-19
Super Austenitic:904L.926.S31254.S31277.S20910.
Duplex/Super Duplex:S31803.S32740.S32750.S32760.S39277.S32520
Urea Grade:316Lmod.317Lmod
17-4PH Series
Monel Alloy Series
Nickel alloy
GH Series
Hastelloy Series
Inconel Series
Incoloy Series
N Series
Pipe Fittings
Guobang Steel has been accredited with many authority certificates, such as the TS-A, B leveled permits of Production License for Special Equipment in China, ISO9001 certificates by Lloyds, certificate by China Quality Certification Center, IQNET, ISO9001 certificates by China Classification Society (CCS), the AD2000-W0 authentication of materials for pressure equipments by TUV, PED/97/23/EC authentication of materials for pressure equipments in EU, Russian GOST Certificate. In addition, with years’ experience of producing marine steel pipes, Guobang Steel has been accredited by eight international classification societies. They are CCS, DNV, BV, KR, NK, ABS, GL, and LR