... : 4130/ 4140/ 4145 OD:10-9926mm WT:5-120MM large diameter seamless steel pipe 1. Technique- hot rolled and cold drawn2. Application- Gas ... Size ODWTSize 10-5216mm 5-120mmtolerance Section shapeRoundApplicationStructure pipe,Oil pipe, gas pipe, boiler pipe, pressure pipe, fluid pipeColorblackTechniqueCold rolled ,Hot dipped, cold drawn/dipped ...