Karstun is a company specializing in the production, sale, export fasteners company of China.

We are  the copper tube manufacturer

We have 10 years of experience in production and sales, complete range of products line of copper bushing, crimp tubes, sleeves, bolts, nuts, screws and washers with various materials and surface plating options,ISO certified quality management system and what is more, to be more competitive and well managed,an experienced and devoted team.

We are  the steel tube manufacturer

We believe that mutual business is not just exchanging goods with money but a mutual satisfaction in the work, making friends and dealing with trust and faith. We look forward to servicing you in near future and becoming your long years partner.

• Professional design of copper products
• Specializing in the production of copper products
• Professional sales of copper products
• Serious customer service