Guangdong Longze Technology Group has been focusing on the R&D, design and manufacturing of automotive moulds, auto parts and 3C product parts for many years. The group operation headquarters and R&D center centered on Chang'an Base, an important town of Dongguan mold industry, and its subsidiaries Guangdong Longze Precision Mold Co., Ltd., Guangdong Tongzheng Precision Mold Co., Ltd., and Chongqing Tongzheng Technology Co., Ltd. form a global business network. Domestic and international cooperation to provide effective and efficient services.

Adhering to the quality policy of "starting from scratch, producing high-quality products, and committing to 100% customer satisfaction", it has successively passed ISO9001 quality management system, ISO14001 environmental management system, QC080000 electrical hazardous substance management system, ISO/TS16949 automobile industry quality management System and other relevant international certification. Focusing on the corporate values of "Enterprises are based on talents, talents regard enterprises as their home, Longze respects customers, and customers are proud of Longze", the group innovates management, attaches importance to talents, and regards customer needs as the top priority of the company's services . At the same time, the group regards cooperative partners as strategic development alliances, and creates value for customers together with suppliers, and then achieves a win-win situation with customers and suppliers.

Guangdong Topzone Tooling Co.,Ltd.is a high-tech enterprise integrating designs, builds, re-engineers, andservices medium to large sized sheet metal progressive, transfer and tandem stamping dies and tooling. The following advantages giveTopzone the core competitiveness to bring better timing, quality, and savingsto its global clients.

110 - highlytrained personnel, Including project managers, estimators, designers, diebuilders, machinist, and administrators, Many of them comes with more than 10 years experience, we can build tooling from simple to complicated

ApplyingCAD,CAE and CAM from the die design to Manufacturing, ensure that every die isthe best solution of design-reasonably, machine-accurately, assembly &tryout-easily, short lead time and production stably.

Standing on theposition of clients to meet or exceed clients requirements and continually improvingits quality.

Longze Stamping mainly introduces the group's operation headquarters and R & D center centered in Changan Base, the major town of Dongguan mold industry, and forms a global business network with its subsidiaries Guangdong Longze Precision Mold Co., LTD., Guangdong Tongzheng Precision Mold Co., LTD., Chongqing Tongzheng Technology Co., LTD., to provide practical and efficient services for domestic and multinational cooperation. Longze Stamping mainly introduces the group's operation headquarters and R & D center centered in Changan Base, the major town of Dongguan mold industry. Zestamping mainly introduces the group's operation headquarters and R&D center centered in Changan Base, the major city of Dongguan mold industry. It forms a global business network with its subsidiaries Guangdong Longze Precision Mold Co., LTD., Guangdong Tongzheng Precision Mold Co., LTD., Chongqing Tongzheng Technology Co., LTD., to provide practical and efficient services for domestic and multinational cooperation. Longze Stamping mainly introduces the group's operation headquarters and R & D center centered in Changan Base, the major town of Dongguan mold industry.

Chuangxin Hongsheng covers an area of about 50,000 square meters. The company has more than 600 employees. Fully automatic electroplating and other advanced surface treatment processes. Its processing capability is at the leading level in the industry, and its products involve high-end fields such as communication 5G, new energy, and self-service terminals. Exquisite manufacturing technology, scientific production management, high-quality customer service, professional management team, and hard-working Chuangxin people have created a leading position in the industry.

The company was established in December 2016. The main products are: communication cabinets, air conditioners, switches, power supplies, antennas; new energy storage cabinets, charging piles, power exchange cabinets, elbow brackets, self-service terminals and automation accessories, with more than 600 employees , Annual sales of 250 million, the company is located in Humen Town, Dongguan City, a famous manufacturing city in China, and is located in the intersection center of the three economically developed cities of Guangzhou, Shenzhen and Zhuhai. Favorable geographical location and convenient transportation provide a favorable guarantee for the development of Chuangxin Hongsheng.

Dongguan Ruixie Plastic Products Co., Ltd. is a manufacturer specializing in the design and manufacture of precision injection molds and precision injection molding. 

The company has obtained ISO9001 quality system certification. We are dedicated, professional and dedicated. We have been in the injection mold and injection molding industry for many years. After hard work, the company has advanced processing equipment (imported) and all-electric precision injection molding machine (imported). The company attaches great importance to the training of technical teams and has strong technical strength. Implement performance management to improve quality and efficiency. Promote the management model of Japanese-funded enterprises and make the work more meticulous.

After years of hard work, in the domestic market, supporting cooperation with companies in the medical and consumer electronics industries has continued to stabilize, and the company's products have been exported to Europe, the United States, Japan and other countries.

Surface treatment is a method of artificially forming a surface layer on the surface of a base material with mechanical, physical and chemical properties different from that of the base. The purpose of surface treatment is to meet the corrosion resistance, wear resistance, decoration or other special functional requirements of the product. For metal castings, our more commonly used surface treatment methods are mechanical grinding, chemical treatment, surface heat treatment, and surface spraying. Surface treatment is to clean, sweep, deburr, degrease, and descale the surface of the workpiece.

During the process of processing, transportation, storage, etc., the surface of the workpiece is often covered with scale, mold sand, welding slag, dust, oil and other dirt left by rust molding. In order for the coating to be firmly attached to the surface of the workpiece, the surface of the workpiece must be cleaned before coating, otherwise, it will not only affect the bonding force and corrosion resistance of the coating and the metal, but also make the base metal even if it is coated. It can continue to corrode even under the layer protection, causing the coating to peel off, affecting the mechanical properties and service life of the workpiece.