Zhejiang Jintong Auto Parts City is a large-scale, long-term auto parts trading hub planned and developed by the Hangzhou Municipal Government. With a total investment of 500 million yuan, it spans 120 acres and features a construction area of 150,000 square meters, including 100,000 square meters dedicated to a central trading zone. The complex includes over 1,300 double-story shops, a 50,000-square-meter exhibition center, commercial offices, and tens of thousands of square meters of public warehousing space. Designed as an integrated platform for trading, storage, distribution, information, and business services, it aims to become a leading auto parts market in East China.
Strategically located, the city benefits from exceptional transportation access. It is near the Shangtang Elevated Road, Light Textile Road, and the Long-Distance Bus North Station, with easy access to National Highways 104 and 320. It also lies close to the Shanghai-Hangzhou-Ningbo Expressway, the Hangzhou-Jinhua-Quzhou Expressway, Xiaoshan International Airport, and Ningbo Port. A planned subway line will pass through the site, creating a multi-dimensional transportation network that connects the city to Zhejiang Province and beyond.
Located within the Hangzhou Automobile Logistics Center, the city sits at the heart of Zhejiang’s automotive industry. It attracts major domestic and international players, including provincial and municipal agents, well-known foreign brand dealers, and production companies. The area is known for its industrial agglomeration, strong trade networks, and favorable business environment. It has evolved into a key hub for car trading, spare parts, and automotive services.
The city offers comprehensive support services, including one-stop administrative assistance, financial solutions, tax and legal services, and partnerships with banks for financing. To enhance global competitiveness, it plans to establish an international auto parts certification system and develop an e-commerce platform to streamline transactions and reduce costs. Additionally, it hosts regular trade publications, collaborates with industry associations, and builds smart office spaces to serve multinational buyers and exporters.
With over 700 merchants already operating in the market, including domestic and foreign brand representatives, the city continues to attract top-tier manufacturers and distributors. In the long term, it aims to become a brand center, agency hub, information base, and logistics node. As it integrates modern elements such as third-party logistics, online trading, and car beauty zones, it is shaping a dynamic future for the auto parts industry. Through strict quality control, enhanced customer service, and a commitment to innovation, Zhejiang Jintong Auto Parts City is steadily building its reputation as a premier destination in the automotive sector.
Hot Melt Adhesive For Express Bag
Express bag sealing with hot melt adhesive, generally used for the sealing of various express bags, some people will feel that the bonding strength is not enough when using, resulting in the opening of the express bag in the middle of the situation. The hot melt adhesive material used to seal the express bag has been fixed. If you want to improve its bonding strength, it can be achieved by the following methods:
1, improve the surface roughness of the sticky object
When the hot melt adhesive is well infiltrated on the surface of the bonded material, the roughness of the surface is conducive to improving the infiltration degree of the hot melt adhesive on the surface, increasing the contact point density between the hot melt adhesive and the bonded material, and thus improving the bonding strength.
2. Penetration
The bonded joint, by the role of the environmental atmosphere, is often penetrated into some other low molecules, for example: the joint in a humid environment, the polymer adhesive layer in the machine solvent, the solvent molecules penetrate into the polymer, the penetration of low molecules first deforms the adhesive layer, and then enters the interface between the adhesive layer and the adhesive, so that the strength of the adhesive layer is reduced, resulting in bonding damage.
3. Migration
Due to the poor compatibility of these small molecules with polymer macromolecules, they are easy to migrate from the polymer surface or interface, and the small molecules that migrate out will hinder the hot melt adhesive and the adhesive material if they gather at the interface.
4. Apply pressure to the bonding surface
When bonding, pressure is applied to the bonding surface, so that the hot melt adhesive is more easily filled with pits on the surface of the bonded body, and even flows into deep holes and capillaries, reducing the gas overflow on the surface of the bonded body and reducing the porosity in the bonding area.
5. Thickness of rubber layer
The thicker adhesive layer is easy to produce bubbles, defects and early fracture, so the adhesive layer should be as thin as possible to obtain higher bonding strength, in addition, the thermal stress caused by the thermal expansion of the thick adhesive layer after heating in the interface area is also relatively large, which is more likely to cause joint damage.
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