Entrance and interior doors are offered on the market by various companies, and, as a rule, at the same time. The ordered doors are delivered as soon as possible by purpose. High -quality doors are produced on modern equipment, which guarantees the absence of flaws in finished products. The latest equipment has minimal errors in its work, and technical control at all stages practically excludes the possibility of production marriage. Companies that cooperate with construction firms and shops offer in bulk doors at a low price. There are usually more favorable conditions for regular customers. Often a variety of shares in the sale of doors are arranged, in this case, you need to monitor special offers and so you can save money well. Entrance metal doors can vary in design, material, design, type of coating and finishes, as well as in the presence of certain components. Elite class doors have door leafs, which are made by separate profiling of two cold -rolled metal sheets. The maximum filling of the canvas is made, the door box is made of a complex section, also there are three stiffeners’ ribs. The steel doors of the business class belongs to the DR series, which is produced at the best factories in China. Its design of the paintings allows you to put the entrance doors immediately after opening the packaging. In this exclusive series, all details are carefully worked out – from a serious thickness of the paintings and a complex compaction system to the design of additional panels and general design. DR steel doors are considered the most durable among Chinese -made metal doors. Entrance metal-class metal doors are, for example, the “Force” series. Original design, the same as the “DR” models, the variety of exterior decoration and the relatively low price for a short time have won the recognition of consumers, so now there is a constant interest in these universal steel doors. Of course, the entrance doors on an individual order are made, in this case, usually Chinese -made doors are in volume from the container, the doors of Russian production can be made in a single copy.