... Petroleum Institute:Certificate of Authority to use the Official API Monogram. seamless steel pipe API A106-5L 5CtOur products are made of 10#, ... A335P11, A335P12, A335P22, SA-213 T11 T22 T12, 10CrMo910, 12Cr2MoWVTiB (Steel Mortar102), 15CrMo, 35CrMo, 42CrMo, Cr5Mo, 12Cr1moV, 10MoWVNb, 07Cr2AlMo, ... and reasonable prices. As we have been in this line for several years, we can ensure you timely delivery ...