1. our company are the biggest agency of bitzer compessor in china 2. we have installation team HSK5343-30HSK5343-20HSK5353-35HSN- ... , R22, R134a,R507A,R407CAdvantages:1) save cost, reduce first time equipment investment2) safe power,supply cooling capacity according to need, save ... , chemical industry, working shop etc. bitzer semi-hermetic water cooled refrigeration equipment