Our company has no existing products to sell, but we can produce and design products according to customers' needs. 1. Specializing in the production of injection molds, plastic accessories. 2. According to customer demand exact quotation. 3. We provide design services for the completion of the project. 4. Surface treatment: sliding screen, polishing, sandblasting, heat treatment, painting, powder spraying, anodizing, 5. Provide assembly service, assist to follow up outsourcing parts. 6. Plastic products: medical facilities, auto parts, sports equipment parts, home appliances parts, electronic equipment parts, agricultural Plastic Parts, industrial plastic parts, plastic toys, etc. 7. High-quality export of Injection Molding Parts and moulds, while buying our products will also enjoy our superior after-sales service. Pp Injection,Plastic Injection Molding,Injection Molding Machine Parts,Plastic Injection Molding Parts Suzhou Dongye Precision Molding Co.,Ltd. , https://www.sjdongye.com
It is reported that the LR1200 type rail flash contact welding unit developed by Qi Shuyan has also been applied to the rail welding of the Beijing-Shanghai high-speed railway from Tianjin to Zhangzhou, Xuzhou and Shanghai-Nanjing sections. In the comprehensive test of the Zaozhuang-Zhaozi section welded with this equipment, it had safely ran out of the domestic maximum speed of 486.1 kilometers. The welding unit has 3 invention patents and 13 patent authorizations.
The carriages of high-speed trains are connected by couplers, and their locking degree and firmness directly determine the normal operation of the car body. As early as November 2005, Qi Shuyan initiated the research and development of the close-coupled coupler of the 300 km/h EMU.
The speed of trains increased to 380 kilometers, and the quality requirements for accessories also rose. After a series of tests, commissioning, process design, and non-standard fixture design, they finally won the new generation of high-speed trains with close-coupled hook device. Statistics show that in this process, Qi Shuyan introduced and digested 200 technical documents and more than 20 sets of manufacturing drawings, and designed more than 30 sets of non-standard fixtures and measuring tools.
According to the person concerned, "At that time, the drawings transferred by Japan's Sumitomo Group were like hills and the project team did not dig more mountains. Not only did the technical parameters meet the requirements of the drawings, but the strength of the couplers was also greatly enhanced through improved design." 
Our company can also make molds for customers, low cost, high quality products. At the same time, we will provide services for the whole mold project development, including design, mold manufacturing, plastic parts production and after-sales service.
Beijing-Shanghai high-speed rail running key components "Jiangsu create"
The key parts and components of the Beijing-Shanghai high-speed rail that are under trial operation are all "created by Jiangsu." Among them, CRH380A EMU gearbox drive device, coupler cushion device, tread cleaner and semi-active shock absorber developed and produced by CSR Qishuyan Locomotive and Rolling Stock Research Institute Co., Ltd. are representatives.