S&J Drive Shaft (Hangzhou) Co.,Ltd was established in 2001, which is a leading player in the mechanical industry, specializing in drive shafts and couplings for agricultural machines. The products are widely used in machineries, metallurgical industry, chemical engineering, agricultural machinery and automobile industry.S&J delivers high-performance, customized drive shafts to over 40 countries worldwide. Certified as a National High-Tech Enterprise, S&J produce over 600,000 drive shafts annually, with patented technologies spanning material engineering, intelligent diagnostics, and low-carbon design, driving continuous efficiency innovation in industrial power transmission.