Flat Zigzag Spring High Carbon Steel Sofa Seat Support Upholstery Spring for Fabric Couch Furniture Factory Supply Product Specifications Product Name Zigzag Spring Style Curve / Semicircular / Flat Wire Diameter 2.8-4.0mm Color Black Or Customized Arc Height 30-250mm Place of Product Guangdong Province, China Width 16-35mm Usage Home Furniture Length Customized OEM/ODM Acceptable Product Overview Zig zag springs are manufactured from hardened spring steel wire and supplied