... audited More than 20 years experience 1,Name: Adjustable screw for sewing machine;adjustable screw;screw for sewing machine 2,For the ... oxide coating,hot dip galvanizing,etc Flame plating Light oil,spray coating,electrophoretic coating,etc Polishing Grinding and polishing,etc,except ... industry is machined hardware fastener ,especially the cutting/turning parts.;; Adjustable screw for sewing machine