... For chemical fertilizer pipe, oil pipe, gas pipe, fluid pipe, boiler pipe and so on. High-pressureBoiler pipe140-3406.0-4020GGB5310 ... For chemical fertilizer pipe, oil pipe, gas pipe, fluid pipe, boiler pipe and so on. 20MnG25MnG15MoG20MoG15CrMoG12Cr1MoVGSt35.8,St45.8DIN17175SA106A/B/CASME ... /P11T12/P12T22/P22T91/P91Product namespecificationsSteel gradestandardsTypical usage High Pressure Boiler Pipe