Beijing JinKaiWei General Machinery Go., LTD. (JKW) is a high-tech joint-stock enterprise which specializes in the development and designing, manufacturing and installation, mating remolding and sales service of compressors as well as the corresponding pre-and-post position purifying equipment. JKW mainly designs and manufactures P,L,D,M series of large, medium and small reciprocating piston compressors and GZ, GV, GD series of diaphragm compressors. Meanwhile, it is also able to design and manufacture nearly 300 models of compressors that can be respectively used for petroleum gas, coal gas, mixed gases of nitrogen and hydrogen for chemical use, as well as for gases that is hazardous, toxic, inflammable, explosive, highly corrosive or radioactive. JKWs products are widely used in the industries of space, military, metallurgy, petroleum, chemical, coal, nuclear, scientific research, environmental protection and gas separation. In additio..