Certificates-Zhongneng Guojian Pipeline|Manufacturers of elbows and fittings

Quality management system certification

Occupational health and safety management system certification

Environmental management system certification certificate

Standardization of safety production

Special equipment type test certificate

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Tel: +86-13613271204

E-mail: sales@zngjpipe.com

Address: Donghe Industrial Zone, Cangzhou City, Hebei Province, China

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