Current refrigerator temperature range 120K or more, and more for industrial and agricultural production and daily life. Refrigerator on the market is broadly divided into: compression chillers, absorption chillers, steam jet chiller and semiconductor cooling. Equipment routine maintenance: 1. If the oil level is below 1/4 sight glass, replenish the lubricant should be; Refueling found the oil level sight glass than 5/6, should stop refueling operations. 2, if found that the system was missing, it is timely to the system and fluoride; at the end of the fluoride, fluorine bottle first close the valve, then close the valve plus fluorine mouth. 3, if the system pressure is significantly higher than the saturation pressure corresponding temperature, which should be considered when put air. 4, put the air for several times the operation should be carried out, not a deflate too much, so as not to release the excess refrigerant. Customs-approved entry of goods about two kinds of ways: First, the general trade import; two import express way. Generally speaking generally more suitable for high-volume trade, the bulk of the high value of imports of goods, imports of express way for liquor, cosmetics and so on. General import clearance process before: orders, contracts, delivery date is determined in relation to domestic freight forwarding customs clearance documents preparation (packing list, contract, invoice, certificate, etc.) and shipping companies for a single electronic declaration with the declaration of a quadruple Union Commodity Inspection Bureau for the customs formalities to offer on-site inspection of cargo clearance EIR cargo import clearance customs formalities required documents contract invoice declaration box single customs inspection instructions for different ways of imports of goods clearance may be different, the need for imported food classification treat, because the food itself, the more categories, and each category requirements are not the same, not the same way import clearance. Imports of goods clearance to consider choose clearance methods, customs clearance takes roughly how much time how much it costs and other issues like the need, speed is directly related to the clearance time to clearance sale of time goods, especially for the holidays, seasons, prevalent in the market, etc. Product sales season. Because we seize the opportunity to quickly capture the market, so the clearance of the professional is vital. Wan Xiang has over 300 professional and trade personnel with professional experience in customs clearance services, we can provide excellent solutions and high quality service based on customer needs, providing customers with different cases to choose from. Depend on customer requirements to improve service, improve service levels. Our current agent import items wine category Nuts soy drinks category Food Machinery Cosmetics Other categories