Shandong China Coal Import & Export Co., Ltd.

To accelerate the implementation of innovation-driven development strategy, enhance the independent innovation capability of industry, cultivate innovative industrial clusters, accelerate the supply s

Morning of November 4th, the signing ceremony for strategic cooperation between Shandong China Coal Group and was held in the E-commerce Industrial Park of China Coal Group. Li Shushan, vice general

There are a lot of reasons cause Mine Electric Locomotive faults, among the reason, the Electrical Faults are very important to the performance of mine electric locomotives. And What causes Mine Elect

In general, the mechanical properties of hot-rolled than cold-rolled better, after heat treatment of steel, its tensile strength, plasticity, toughness will be improved, in addition, the important poi

Mine electric locomotive operation is a prudent and serious work behavior, coal mine electric locomotive operation method can be summed up with simple words: start, stop, speed, commutation, braking.

Some people say that profile steel is one of the four varieties of steel (plate, tube, type, wire); it is said that according to the cross-section shape, profile steel can be divided into simple secti