... accessory- sewing collar hook &hook and bar:1.Material:Iron,Brass,Stainless ... ( nickel-free,azo-free lead-free and under needle test)7.Main Markets: ... all-known manufacturer in hooks and bars in china,OEM is welcomed ... the spirit of "pragmatic innovation, integrity and refinement" and "customer first, quality-oriented" as ... best to provide qualified products and best services to all apparel enterprises ...