... Application1) Pipes & Tubes for Boiler2) Pipes & Tubes for Electricity3) Pipes & Tubes for Chemical4) Pipes & Tubes for Oil Service5) pipes & ... 2-80Temperature-resistantseamless steel pipefor high-pressure boilerSeamless pipes for petroleum 20, 12CrMo,15CrMo, Cr5Mo, ... .5-36Boiler pipes for refinery,heat exchanging pipes,seamless steel pipes for pipelineHigh-pressureSeamless pipes for fertilizer making ...