Jining Minerer Construction machinery co., LTD. is located in China's four big construction machinery base of jining city in shandong province. The main business shantui the bulldozers series; SD42, SD32, SD23, SD22, SD16, SD13, SD08 komatsu excavator series; PC60, PC200, PC210, PC220, PC270, PC300, PC360, PC400 komatsu bulldozers series: D50, nikon D60, D65, D80, D85, D155, D355 cummins engine series: NT855 C280, NTA855 - C360 is specialized in all kinds of coupling, expansion of enterprises. The company's main products are: diaphragm elastic coupling, star coupling, torx elastic coupling and roller chain coupling, tyred coupling and flange coupling, oldham coupling, coupling, coupling column, elastic sleeve pin coupling elastic dowel pin, elastic dowel pin coupling, drum gear coupling, universal coupling, industrial expansion tight coupling sleeve, etc., the company's products complete specifications, widely used in petroleum, chemical, electric power, metallurgy, mining, steel, shipbuilding, textiles,