1. Standard: DIN2391, DIN17175, EN10305-1, etc 2. Size ranges:  OD 6-65mm, WT 1-8mm 3.Precision:  OD + / -0.05mm, WT + / -0.05mm.Speci al accuracy: + / -0.03mm 4. Length:    ....
CHANGZHOU RAYMOND STEEL TUBE CO., LTD ESTABLISED IN 2002, WITH COVERING 20000 SQUARE METERS, AND MORE THAN ONE HUNDRED EMPLOYEES.COLD DRAWN AND COLD ROLLED SEAMLESS STEEL TUBES AND PIPLES ARE OUR....