Regency Steel Japan Limited has granted certification for JIS A 5525 (Steel pipe piles) and JIS G 3444 (Carbon steel tubes for general structure).

Assessment organization:  JIC Quality Assurance Ltd.

Certification number:        QA0818001

First certified:                   January 8, 2019

Type or grade:                 JIS A 5525 : SKK400, SKK490

           JIS G 3444 : STK290, STK400, STK500, STK540

Fabrication method:          Arc welding steel pipe

Outer diameter:                φ1,400mm～2,700m

Thickness:                       16mm～50mm