Qingdao Haiguan Cold Chain Equipment Co., Ltd.: Qingdao Haiguan freezer takes independent R&D as the core competitiveness, product quality as the support strength, and customer satisfaction as the guide line, to promote the high-quality development of the cold chain industry. The equipment is widely used in supermarkets, convenience stores, fresh food trade market and other places, it locks freshness for the last mile of modern cold chain.