Crack resistant valve can prevent the oil pipe rupture resulting in table control falling accident.
防裂阀可防止油管破裂导致工作台失控下降的事故。
2
It was very difficult for high cr cast Fe hollow ball valve in investment casting due to its internal hollow and full close as well as high crack susceptibility.
高铬铸铁空心球阀的精密铸造难度较大，球阀内部必须空心、全封闭，同时高铬铸铁的裂纹敏感性极强。
3
Manned by the lifting table are equipped with railings and crack resistant valve.