... brass 2.Size:custom and OEM design bolts;T-bolt;special bolts We are proffesional manufacturer and exporter for different ... , casting, forging, machining parts with differentmaterials, such as brass, aluminium, steel, stainless steel, zinc. Our strong R&D and QC ... , casting, forging, machining parts with differentmaterials, such as brass, aluminium, steel, stainless steel, zinc. Our strong R&D and QC ...