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Let KUMAGAI provide the best special steel for you!
請讓我們為您提供最合適的特殊鋼材!

ABREX®・WEL-TEN®・S-TEN® is the trademark of NIPPON STEEL CORPORATION
COR-TEN®is the trademark of United States Steel Corp.
ABREX®・WEL-TEN®・S-TEN® 是屬於日本制铁(株)的登錄商標
COR-TEN®是屬於United States Steel Corp.的登錄商標