Zhejiang Longxin Machine-Building Co., Ltd is a professional manufacturer in the industry of the compressed air purification and treatment. Currently, our products are mainly refrigerated compressed air dryers or freezing air dryers, adsorption air dryers or desiccant air dryers, air filters and air tanks, pressure vessels, they are widely used in the petroleum, textiles, chemical fibers, spaying, electronics, pharmacy, brewings, mouldings and autos. These products are very popular around the...