In 1912, Andre Citroen Citroen began employing shapedgear as a trademark of our products.
1912年，安德列·雪铁龙开始用人字形齿轮作为雪铁龙公司产品的商标。
2
Various of wheel chain, drive chain , chain sets, Custom-making special shapedgear, various chain for export.
各种大小链轮、链条、套链、定做异型齿轮、及各种出口链轮。
3
The device by the human operator launches, such as through the cone-shapedgear reducer drive, direct drive valve stem up and down movement of the valve gate.