표준:ISO9001-2008

번호:CN14/10391

발급 일자:2014-09-19

유효 기간:2017-09-18

범위 / 범위:Sales of pipeline equipment covering pipes, valves, flanges and fittings

발행:SGS

표준:ISO9001:2015

번호:U22Q28012214R1S

발급 일자:2023-04-12

유효 기간:2025-01-01

범위 / 범위:Export Production of Steel Buttwelding Fittings, Forged Flanges and Forged Pipe Fittings

발행:Guardian Independent Certification Ltd

표준:ISO9001:2015

번호:U22Q2801247R1S

발급 일자:2022-01-12

유효 기간:2025-01-11

범위 / 범위:Sales of pipeline equipment covering pipes, valves, flanges and fittings

발행:Guardian Independent Certification Ltd

표준:ISO9001:2015

번호:U19Q28012214R0S

발급 일자:2019-01-03

유효 기간:2022-01-02

범위 / 범위:Manufcture & Sales of Hot Rolled Steel Pipes, Steel Seamless Pipe Fittings, Steel Welded Pipe Fittings, Forged Flanges and Forged Pipe Fittigings

발행:Guardian Independent Certification Ltd