Profile: Elda Machining Co., Ltd is a manufacturer and supplier of custom precision machined parts & transmission parts. We offer spur gears, bevel gears, helical gears, metric gears, worm wheels, internal & external splines, gear shafts, special gears and gear units. We also specialize in surface treatment, hardening, tempering, blackening, phosphatization, anodizing and zinc plating services.