STANDARD:JIS & GB STANDARD FOR CONSTRUCTION USAGE/SHIP BUILDING USAGE.

OD:30X30MM -  400X300MM

THICKNESS: 3MM - 26MM

LENGTH:3M-14M

STANDARD:JIS & GB FOR CONSTRUCTION USAGE/SHIP BUILDING USAGE. OD:30X30MM -  400X300MM THICKNESS: 3MM - 12MM LENGTH:3M-14M