Qingdao Shuangjunli Machinery Co., Ltd. specializes in designing, manufacturing and installing temperature control equipment. For years, our company has been committed to promoting energy conservation and environment protection and has made a good example in the two aspects. Since the inception, our company has taken part in international communication and cooperation. Our product quality has reached internationally advanced level. Thanks to excellent staff members, strong production and development power, rich product knowledge and customized designs, our company can sufficiently meet users' needs. All of our new products were stringently tested and repeatedly experimented to guarantee ... more