snap fastener: 1.Material:Brass 2.Two part in one set,8.5mm with 4holes 3.MOQ:5000sets 4. ... time sewing hidden snap fastener 1.Material: Brass2.Two part in one set 3.Size:Φ6mm,7mm,8.5mm,12mm,15mm ... ,bags 11.We are a all-known manufacturer in hooks and bars/button in china. With the spirit of "pragmatic innovation, integrity ...