Condition: R & M
Specification:
OD: ID: thickness:
200mm-400mm 100mm-300mm 35mm-120mm
>400mm-700mm 150mm-500mm 40mm-160mm
>700mm-900mm 300mm-700mm 50mm-180mm
>900mm-1300mm 400mm-900mm 70mm-250mm
Executive Standard: GB/T, GJB, ASTM, ASM, DIN