Product Description
螺紋是一種在固體外表面或內表面的截面上，有均勻螺旋線凸起的形狀。
根據其結構特點和用途可分為三大類：?
（一）普通螺紋：牙形為三角形，用于連接或緊固零件。普通螺紋按螺距分為粗牙和細牙螺紋兩種，細牙螺紋的連接強度較高。?
（二）傳動螺紋：牙形有梯形、矩形、鋸形及三角形等。?
（三）密封螺紋：用于密封連接，主要是管用螺紋、錐螺紋與錐管螺紋。
Cooperation Case
Ministry of Railways Bidding: Ministry of Railways, Beijing Railway Bureau, Shenyang Railway Bureau, Jinan Railway Bureau, Zhengzhou Railway Bureau, Wuhan Railway Bureau, Guangzhou Railway Group, Chengdu Railway Bureau, etc .; China Railway Construction: China Railway First Bureau, China Railway Second Bureau, China Railway Third Bureau China Railway Materials Bureau, etc .; China Railway Materials: Alibaba, foreign customers, China Railway Materials Foreign Trade Company, in-house enterprises, enterprises in the same industry; exporting countries: Mongolia, Australia, Russia, Vietnam, Nigeria, etc.
The company was established in 2013. It is a production enterprise specializing in the research and development, production and sales of special parts for railway lines. The production base covers an area of 40 acres and the total assets are more than 50 million yuan.
At present, the company has the ability to produce 5,000 tons of steel rail buckle accessories, and the company has advanced automated gauge gauge and steel production lines.
