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ISO 9001证书
ISO14001证书
ISO 14001
ISO9001
ISO9001
API Spec 5DP
API Spec7-1
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GOST
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Address: 045499, People`s republic of China, No.114 Chaoyang West Street, Shouyang county, Jinzhong city,Shanxi Province.

Tel:  +86(354) 4602448/919  Fax: +86(354) 4602 431 E-mail: hj@huanjie. com. cn / gongjinwu@huanjie. com. cn

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