This is a promotion business travel suitcase for men, which is suitable for travelling. It is use the zipper to close the luggage. The surface material of the ABS Luggage is abs plate, not easy to peel and break. The wheel of the suitcase bag is 360 degrees universal double wheels design for rolling smoothly. The Tie rod still uses the solid aluminum alloy tie Rod. Four corners of the surface all have been designed the plastic wrap angle to avoid the damage by violence. About inside space of the business suitcase, it is big enough to help store more things. Zipper Luggage,Double Zipper Luggage,Female Luggage,Men'S Luggage, luggage bag, large suitcase,best carry on luggage,hand luggage, cheap suitcases, tourist bag, carry on suitcase Zhejiang Yinglin Luggage Co. Ltd , https://www.yllcluggages.com
China successfully developed thermoplastic polyimide
Recently, the financial support provided by Changzhou Guangcheng New Plastics Co., Ltd. and the development of thermoplastic polyimides by Nanjing University of Technology have been successfully developed, and a capacity of 200 tons/year has been formed, which has changed the long-term reliance on imports of such products in China. . The thermoplastic polyimide not only has excellent mechanical properties, dielectric properties and heat resistance, corrosion resistance, abrasion resistance, etc., but also overcomes most of the polyimide insoluble and infusible, difficult to process defects, showing good The hot processing characteristics can be molded by hot molding, extrusion and injection methods, and can be compounded with carbon fiber, glass fiber, PTFE, graphite, etc. to further improve the properties of the material such as stretching, self-lubricating, and wear resistance. The thermoplastic polyimide products produced can replace metals, ceramics, thermosetting resins and low-temperature thermoplastics under certain conditions. They are used in automotive and aircraft engines, communications equipment, commercial equipment, electronic appliances and microelectronics, and medical equipment. Textile equipment and other fields.