Standard: DIN 2391-1 Grade: St30Si, St30Al, St35, St45, St52. Out Diameter: 4-260 ... -68.4mmLength:39.34'/12M.max FOB Price/MT:USD780--1,480.00MOQ:10MT Stanard Name: Seamless Circular Tubes of Non ... /hardness tester and so on.Production capacity: 300,000 metric tons per year. Marking:specification,HS code,origin,or as required ...