UPVC PROFRLES

Founded in 1997, Jinan Winser Construction Material Co., Ltd. is a specialized manufacturer of uPVC window and door profiles based in Jinan, Shandong, China. Our profiles are sold as “明塑" (Mingsu) in the domestic market — where they account for 60% of local PVC profile sales — and as "Winser” in export markets across Latin America, Europe, Southeast Asia and India.

Winser is a government-certified National High-Tech Enterprise and a member of the Shandong Provincial Building Doors and Windows Industry Alliance (New and Old Growth Drivers Conversion). With a lead-free CaZn formula, in-house extrusion and lamination, and double-layer export packaging, we deliver consistent welding strength, stable color and on-spec delivery from a single supplier.

Winser uPVC profiles use a high-quality formula, ensuring high welding corner strength and high impact resistance; selecting lead-free, non-toxic CaZn heat stabilizers, high UV-resistant titanium dioxide, UV absorbers, antioxidants, and other high-quality additives, ensuring they are green and environmentally friendly. Has been awarded the titles of "China's Green Environmentally Friendly Building Materials Product" and "Low-Carbon Product".

Main products include plastic co-extrusion, colored lamination, colored solid body, colored wood grain, brushed metal, and two-color co-extrusion profiles, and can co-extrude ASA layer run with extra properties.

Winser offer customization services, including custom Profiles, Colors, Stickers, Lables, Engraving brand and so on.

With high-quality products and competitive prices, Winser profiles are high welcomed by a wide range of customers, account for 60% of the total PVC profile sales in the local market. Winser also actively participates in the international market, and products have been exported to Latin America, South America, Europe, Southeast Asia, India and other countries and regions. And provide double-layer packaging to ensure products arrive at the customer's location in perfect condition.