铁钻工套管钳批发商 钳具有以下特点
开口型，**切径比设计；
刹带制动，采用上下扶正机构；
液压式，齿轮挂挡；
配扭矩表，可选配扭矩控制系统，显示、控制和记录上扣扭矩。
The Casing tong is used to make up and break out for casing operation in oil fields. It has greatly reduced the labor of worker, enhanced connection quality of thread and diminished accide...
