There are many customers contact our first sentence will ask: according to national standards to our production of copper copper sets, what is the specifications ... .... In fact, I want to say, I would also like to give you according to national standards of production, but the fact is now graphite copper sets of the industry's products, are generally in accordance with the size of the various mechanical OEMs customized, we called the standard is probably " JBT 3729-2008 bronze graphite oil bearing "this standard.

                                                      Graphite copper sets

Hunan Jintai Hardware and Machinery Co., Ltd. Is a professional manufacturer of custom-made graphite copper sleeve, for each customer needs to create a matching customer mechanical accessories sleeve.