... 4, Company Introduction:Chongqing Maolian Electromechanical Equipment Co., Ltd in China. We have own factory. And we can supply ... a best quotation.A, What is the working pressure ( Mpa, Bar, PSI)?B, What is the volume flow ( m3/min, CFM)?3, What is the Power supply ( KW ... purchasing of inapplicable or wrong products. In the case of unsuccessful purchasing, it is unfair not to allow a return. ...