Refrigerator door [preferred] Shandong Huayu maintenance folding a cold storage installed or used again after long periods, cooling rate must be reasonable: 8-10 ℃ control day is appropriate, in a period of time should be 0 ℃. Second, the cold storage library board maintenance, attention should be noted that the use of a hard object library body collision and scratching. Because the library board can cause depression and rust, a serious cause reduced insulation performance of the Local Library. Third, the cold sealing parts and maintenance, because the assembly is to fight cold storage insulation board made by a number of blocks, so there is a certain gap between the plates, the construction of these gaps will be sealed with a sealant to prevent air and moisture from entering. Therefore, the use of some parts of seal failure timely repair. Fourth, the cold ground maintenance, general assembly of small cold storage insulation board flat ground using open refrigerator door, refrigerator should be used to prevent the ground there are a lot of ice and water, if there is ice, cleanup must not use a hard object beat damaged ground . Features a refrigerator door, the product name: two cold storage doors, Company Name: Shandong Hua Yu Machinery Co., Ltd. Third, the product features: 1, using patented technology combines bump connected: the use of a combination of factory prefabricated insulation panels, bump binding mode connect, easy to spot in a combination of site construction, demolition and displacement capacity decrease the number of doors, in order to facilitate changes in their storage capacity. 2, combined with the Ministry have superior strength and insulation performance: the new agency with a unique binding mode bump secondary locking technology, strength and insulation properties junction has been further improved. 3, the refrigerator door: high-density polyurethane cold storage doors combine Surrounded by 2.0mm welded stainless steel edging overall framework, to better ensure the refrigerator door a long time with no distortion. Doors installed heater four weeks, four weeks plus hotline and door frames with heating absolute moisture and frost. 4, with the refrigerator door safety device: Due to the door with a safety device, if inadvertently put people in a cold refrigerator door shut production, but also can easily escape. 5, the modular cold storage with pressure equalization valve: in cold storage in the refrigerator door wholesale, with a pressure equalization valve to open or when the balance defrost, pressure difference between inside and outside of the cold storage. Cold storage doors, doors Siping, Fitch machinery provided by Fitch Machinery Co., Ltd. Shandong. Shandong Huayu Machinery Co., Ltd. (www.huayujxsb.com) (www.huayujxsb.com) strong, credible, Shandong Binzhou industry-specific equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Fitch machinery and you hand into the brilliant, for a better future!