Shanghai Befirm(ZhiJian) Industry Technology CO., LTD located in fengxian district of Shanghai China as a professional enterprise, which is specializing in research, manufacture and sales of all kinds of mining equipment,included mobie jaw crusher , mobile crusher production line ,sand making machine , cone crusher ,impact crusher and so on . Our company has already formed a full set of modern production line, equipped with intelligent, standardized testing and controlling laboratories, owned a professional team for R&D, production, sales and service.