For bolted couplings, everyone has different special concerns about it, and what we do is to maximize the product requirements of each customer, so the quality of our bolted couplings has been well received by many customers and enjoyed a good reputation in many countries. Changzhou Tenjan Steel Tube Co., Ltdbolted couplings have characteristic design & practical performance & competitive price, for more information on the bolted couplings, please feel free to contact us.