Shandong China Coal Import & Export Co., Ltd.

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

For railway use rail tamping machine, the motive force generated by the engine is transmitted from the passive plate to the gearbox.

November 1st, a number of coin sorters of China Coal Group Joint Manufacturing Company will be exported to the United States after passing the final inspection. This batch of coin sorters, designed ac

November 3rd afternoon, Mr.Yu, the journalists of Qilu Evening News visited Shandong China Coal Group for interview the development of China Coal Group cross-border e-commerce business, Group executiv