1) the bidding unit has the national industrial products production license (gas cooker class and electric heating food equipment class), health production license (disinfection class) (2) the bidding unit has a municipal or above the competent authorities issued by the installation and maintenance of gas-burning appliances qualification certificates, to provide engaged in the installation and maintenance of operating personnel and obtain the gas management issued by the Department of Occupational Skills Post Certificate" and the unit for its social security certificate;

Kitchen, is the room in which food can be prepared and cooked, a modern kitchen usually has equipment including stoves (gas stove, electric stove, microwave oven or oven), flow of the table (dishwashing sink or dishwasher) and equipment for storing food (eg: refrigerators, freezers). Having a well-designed and well-furnished kitchen will make you relaxed and happy. Kitchen renovation should first focus on its functionality. To create a warm and comfortable kitchen, the following points are necessary: first, visually clean and fresh; second, there should be a comfortable and convenient operation center: the cabinets should take into account the science and comfort. The height of the stove, the distance between the stove and the sink, the distance between the refrigerator and the stove, choose vegetables, cut vegetables, fried vegetables, cooked vegetables have their own space, the cabinet should be designed drawers; Third, to have fun: for modern families, the kitchen is not only a place to cook, but also the space for the family to communicate, the stage of leisure, craft paintings, greenery and other decorations began to go into the kitchen, and the breakfast nook, bar and so on more to become to create a space for relaxation! Good ideas, cooking can be exchanged when the day's sights and sounds, is a landscape before dinner.