kerite

It is proved that the anti-collapse function of the treating chemical in fluid kerite in piedmont drilling is more and more obvious, and the application is more and more widely.

沥青类处理剂在山前的防塌作越来越重要,应越来越广泛,但由于其基质沥青成分的复杂及由于各种改手段的应,使沥青类处理剂的室内评价指标与现场应越来越难以统一。