1. Ni ibamu si awọn bošewa ti darí ile ise, flange orisi ni o wa: awo iru alapin-welded flange, apọju-welded flange, Integrated flange, apọju-welded oruka-awo iru loose sleeve flange, alapin-welded oruka. , Flanged oruka-awo iru loose sleeve flange, flange ideri. 2...
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