2. Size: diemeter is from 21.5 in to 406.4 mm, the thickness is from 0.6mm to
20mm ,the length is from 1m to 12m
3. Standard: GB/T3091-2001 , BS 1387-1985 , DIN EN10025 , EN10219 , JIS G3444:2004 , ASTM A53 SCH40/80/STD , BS- EN10255-2004
20mm ,the length is from 1m to 12m
3. Standard: GB/T3091-2001 , BS 1387-1985 , DIN EN10025 , EN10219 , JIS G3444:2004 , ASTM A53 SCH40/80/STD , BS- EN10255-2004