When consumers buy travel suitcase, first check the appearance of the box, that box is Zhou Zheng, box angle is symmetrical, the box can be upright or upside down on the ground to check the box if fours, not skewed, and Check the box surface is smooth, with or without scratches, cracks, with particular attention to case (above, below) should be symmetrical corners. Open the box, check the box mouth, box opening to coincide with each other, the gap should be small, to seam, hinge rotating flexible customization, no jamming, kema (buckle) and combine the deduction is maintained, hit the open, box there should be strong adhesion, textile fabrics may not have jump wire, split horses phenomenon. Handle (mop) installation firm, not loose. Retractable rod should have a certain strength, telescopic rod with fixing lever with moderate, not too large volume expansion custom aluminum case, after the lock button is pressed rod, telescopic rod should be able to shun local. Me to go round should be flexible rotation, the best choice to go round with a bearing. Check the box lock, you can easily combine several sets of digital test, open, closing the normal can be. Instrument box is mainly made of aluminum alloy skeleton, which is specially developed skeleton of aluminum, according to the need to be coated, such as oxidation process. Skeleton strong, wear-resistant aluminum boxes custom military, anti-oxidation, it seems generous texture. Case fabric can choose different colors, so that the fabric has a varying diversity. ABS checkered panel uses the labor of its high density, wear-resistant, easy to penetrate sharp features, and a variety of materials can also be bonded to produce a box more rigid, load-bearing and other special instrument case stronger internal EVA Sponge EVA ethylene - vinyl acetate copolymer ethylene - vinyl acetate copolymer referred EVA, vinyl acetate is generally (VA) content of 5% to 40%. Compared with polyethylene, EVA due to the introduction of the vinyl acetate monomer in the molecular chain, thereby reducing the high crystallinity, improved flexibility, impact resistance, filler compatibility and heat sealing properties, are widely used foam shoes materials, functional films, packaging films, adhesives, wire and cable and toys and other fields. In general, the performance depends primarily on the EVA resin content of vinyl acetate of molecular chains. 2001 China's EVA resin market consumption is about 290 kt. With the increased development and function of the amount of China's shoe industry films, China's demand for EVA resin will increase year by year. EVA resin in the ink, bags, bottles, gaskets and other fields have wider application. General suitcase, according to the material to points, can be divided into soft cloth case and hard drum trolley case two (and other hardware can be divided into ABS and PC, the popularity of the material is ABS or ABS + PC also pure PC); constructed in accordance to points, can be divided into two suitcases vertical and horizontal rod; and by size to points, can be divided into (from small size to large size): 16-inch ', 18-inch '20-inch', 22-inch ', 24-inch', 26-inch ', 28-inch', 30-inch ', 32' 'these types! Commonly used 20-inch and add trilateral 115CM (except British Virgin provision is 105CM) international standards can take on the plane and the 28-inch size and add 158CM aircraft trilateral free consignment size. Domestic aviation can check the maximum size of 32 inches. Custom aluminum case, Shin Hae packaging (certified), customized by Xiongxianshenhai packaging color Limited. Xiongxianshenhai packaging color Limited (www.shenhai6688.com) (www.shenhai6688.com) Hebei Baoding, plastic bags leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum to meet customer needs. Shin Hae leader in packaging with the staff warmly welcome all inquiries negotiations to create application-Packing better future.