... used in ship,liquid service,ptroleum craking,chemical fertilizer equipment,high pressure boiler,low & mid-pressure boiler,etc ... 1Cr5MoGB6479-200025-426mm, 6-40mmMainly used in chemical equipment,fertilizer equipment and pipelines under high pressure or high tempretureOil ... in the construction,pipe of industrial,water pipe,fence equipment,telecommunication tubes as well as green house tubes for different ...