high quality brass worms 1.anti-corrosion 2.eco-friendly 3.ISO9001:2008 &2000 4.DIN JIS high quality cnc precision brass wormsSpecifications:1) Suitable for various automotive, electronic, telecommunications, mechanical products, medical devices, etc 2) Adopts advanced CNC machines, highly efficient Rigang injection molding machines, German injection molding machines, Japanese and South Korean ...