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Hebei haihao high pressure flange & pipe fitting group was established in 1982, located in Mengcun County the hometown of pipe fittings in China.

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AFNOR NF E292001 Flange

Association Fran aise de Normalisation (AFNOR) is the French national organization for standardization and its International Organization for Standardization member body.
The AFNOR Group develops its international standardization activities, information provision, certification and training through a network of key partners in France who are members of the association.

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