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Wenzhou Yiyu Industry Co., Ltd. (Zhejiang Fangwen Special Steel Co.,Ltd.) has scientific management .It has passed ISO9001: 2015 international quality system certification, Korea Certification, PED CE safety certification EU Pressure Equipment Directive, API-6D American Petroleum Institute certification, TS pressure pipe valve manufacturing license certification.
API6D
CE
ISO9001-2008
ISO-9001-2008
ISO-English
KC
Made in China Audited Supplie
TS