The company has its main production base in Shanghai. It also works with a number of strategic suppliers in NingBo, Dalian, ChangZhou, KunShan and ZhangJiaGang. They each come with more than 10 years of manufacturing excellence in the metal component industry. • Turning operations are mainly done on auto-lathe and CNC machines with specialization for parts with a diameter range of 0.6 mm to 20 mm. • Surface roughness: below Ra 1.6 for normal requirements. Special requirements of Ra 0.4 is achievable. • Surface treatment: Plating of gold, silver, nickel, zinc. Passivation etc. • Run-out is smaller than 0.04mm for shaft lengths of 400mm and the concentricity is 0.075mm.