... 3.material:P11,P12,P91,42CrMo,12Cr1MoVG alloy steel tubes12Cr1MoVG seamless alloy steel pipeProduct name15CrMo alloy steel pipeStandard GB JIS ASTM AISI DIN ... inspection OMIC,SGS, as customer demandRemarkWe can customer made for special requirementContact Name: Miss PanCompany name: Liaocheng Zhengtai Materials Co., LtdCountry ...