The tail end of computerized flat knitting machine. The zero position sensor of knitting needle is produced by Changshu Tengfei Electronic Appliance Co., Ltd. According to the inquiry of official website of Changshu Tengfei Electronic Appliance Co., Ltd., the zero position sensor of knitting needle is installed at the end of computerized flat knitting machine. Scope: R&D, manufacturing and processing of electronic and electrical products. Sales.