四机赛瓦石油钻采设备有限公司
Exhibit Profile：
Clutches and Brakes (low inertia clutches and brakes, power grip & PO style clutches, WCB brakes (water cooled brake), power take-off clutches and mechanical PTO’S)
Clutches and Brakes (low inertia clutches and brakes, power grip & PO style clutches, WCB brakes (water cooled brake), power take-off clutches and mechanical PTO’S)
Website：http://www.sjs.ServaCorp.com/cn/