Zhengzhou Double Win Machinery Co., Ltd., formerly named Zhengzhou Mining Machinery Plant which was established in 1956, is specialized in the research, development and production of crushing equipment, screen equipment, mine-selecting equipment and abrasion resistance material. 　　Our company possess of processing workshop of cast steel, cast iron and heat treatment, cold working shop for structural member production, machine shop for metal cutting and heavy machine tool cutting processing, metallic material chemical analysis and test unit.Our products almost include all the type of crushing, screening and conveying equipments. PFC series hammer type impeller crusher developed by our company have the function of one set for two set use, PL series vertical type impact crusher ( sand manufacturing machine) have advanced world standard, PE series jaw crusher show the features of stable performance and good abrasion resistance, YK series circular vibrating screen show the features of robustness and high screening efficiency, PK series impact crusher show the features of perfect product particle size and high efficiency, PCK series reversible hammer crusher show the features of big reduction ratio an d high yield, and PCH series ring hammer type crusher are first-rank products for crushing coal an d coal slack.