Jaw crusher four branch pipe of oil by adjusting bolt to adjust the flow indicator, if improper adjustment will cause uneven oil each branch points, and some large amount of lubricating oil, some small amount of lubricating oil. When oil supply sufficient usually there is no problem, but in the oil pump malfunction or fuel…

Recently, the Chinese Ministry of Water Resources, the Ministry of Transport jointly issued “on further strengthening the management of sand mining,” which requires the provinces to further strengthen river channel sand mining management, maintenance of river channel stability and to protect the safety of flood control, navigation security, water security, ecological security and critical infrastructure…