3) Alternative aluminum 6061; Surface cleaning, or anodizing finish.
4) Alternative medium carbon steel 45; Coated with rust-proof oil, zinc plating or nickel plating.
Ningbo Dongzhou Transmission Co., ltd is Well equipped with more than 300 all kinds of precision machining equipments and professional testing instruments. Ningbo Dongzhou Transmission Co., ltd is leading manufacturer of Bolts-PM Series and Bolts-PM Series suppliers which specialized in manufacturing mechanical spare parts, farm machinery parts and auto parts like Clevises, Bolts, Clips, Rod Ends, Radial Spherical Plain Bearing, Ball Joints and so on. Non-standard products can be designed and put into production as per samples or drawings accordingly. Factory manufactured Bolts-PM Series are well welcomed both at home and abroad markets like USA, Europe, Middle East, Southeast Asia, etc. We also wholesale these products worldwide.