... : 5-7m HIGH QUANTITY FAST DELIVERY Cold drawn seamless steel tube Typecarbon steel pipesSize59-89mmWall thickness5-14StandardGB ,ANSI,ASME GB, SH,HG ... 5L GRB/ Q345/A335/ST37/ST52X42-X65Packagingpainting black, cap, In bundle.Applications range petroleum, smelting, foodstuff, power, papermaking, chemical, medical equipment ...