... quality 3.Best service AISI 304 stainless steel pipes Detailed description Name304 Stainless Steel PipeStandard ASTM A554, A312, A249, A269 ... gas transport,decoration, construction,medical equipment, aviation, boiler heat-exchanger and other fieldsTestSquash test, Extended test, Water ... pressure test, Crystal rot test, Heat treatment, NDTPayment30% T/T as deposit, the balance ...