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　 starting form the early 80's, SMMC introduced the know-how for three key components of the belt conveyor , that is ,idler pulley and gear box form precismeca GmBH and PWH Weserhuette of Germany respectively. Our company has developed the long distance belt conveyor with the features of high intensity, high speed and large capacity to instead of the import product, In 90's, we also developed the movable belt conveyor and excavate system in dumping site and excavate field, extension type distributing belt conveyor and pile belt conveyor for crush system. The production capacity of belt conveyor is 50000m annually. Now SMMC has become the biggest base for manufacturing the belt conveyor in our country.