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Our GWA008 expansion screw is used to fixing the wpc joist,

laying a solid foundation. offering increased corrosion and crush resistance.

one square meter need 7-8 expansion screws.

we recommend when you starting fix the joists,

please make the ground hardening pretreatment and Surface leveling firstly

Address:Longquanwu Eco-Industrial ZoneMiaoxi, Huzhou, Zhejiang

TEL: +86-572-2670601

FAX: +86-572-2613306


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