Zhuji Zengshi Machinery Technology Co., Ltd., also known as Coolway, is a specialized provider of HVAC and refrigeration components based in Zhuji, China. Established in 2013, the company has grown into a significant industry player with a workforce of 201 to 300 employees and an annual revenue ranging between $10 million and $50 million. The company offers an extensive catalog of air conditioning and refrigeration parts, including compressors, manifold gauges, AC contactors, thermostats, and fan motors. Their product range also extends to specialized hardware such as freezer hinges, copper pipes, pipe insulation, and PVC strip curtains. Operating under the management philosophy of quality and credit first, the company provides components compatible with approximately 80% of global air conditioning brands. In addition to core components, they supply refrigeration tools, brazing rods, and temperature sensors to international markets, positioning themselves as a comprehensive source for AC system solutions.
OEM manufacturerOffers OEM services for customized brand manufacturing.
Own brandOwns and operates its own brands and manufacturing facilities.
Multinational enterpriseOperates in multiple countries or regions like Asia.
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Hangzhou Zhongshi Machinery Co., Ltd. is a professional manufacturer and trading company established in 2006, specializing in high-quality metal casting and precision machining. Based in Hangzhou, China, the company operates a 5,000-square-meter factory equipped with advanced 125T to 500T die casting machines, polishing equipment, and ball blasting machinery. With over 15 years of industry experience and a dedicated staff of approximately 100 employees, the company maintains a monthly production capacity of 70 tons of aluminum products.
The company's core expertise lies in a diverse range of casting methods, including high and low-pressure aluminum die casting, zinc die casting, sand casting, and specialized casting for brass, bronze, copper, and high-temperature alloys. Their comprehensive manufacturing capabilities extend to CNC machining, metal stamping, sheet metal processing, and aluminum extrusion. These components serve critical roles in the automotive, motorcycle, furniture, garden tool, and hardware industries.
As an ISO 9001:2000 certified enterprise, Hangzhou Zhongshi Machinery emphasizes consistent quality and technical precision. They offer robust OEM and ODM services, supported by an experienced R&D team capable of developing new products from customer drawings or samples within 15 to 25 days. The company maintains a strong international presence, exporting to major markets across Europe, North America, Asia, and Australia, with annual export sales reaching approximately three million USD.
Die Casting Parts
Die Casting Parts
Die Casting Parts
Copper Part
Sand Casting Art Work
Aluminium Casting Part
Stamping Chains
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Stamping Container
Aluminum Sand Casting
Zhoushan Dinghai Chenshi Machinery Co., Ltd
🇨🇳 China
201111-50 peopleManufacturer/Trading Company
OEM manufacturer
ODM manufacturer
Product customization
Low MOQ
Description
Zhoushan Dinghai Chenshi Machinery Co., Ltd, operating as both a manufacturer and trading company, specializes in the production of high-quality series screws and rubbermelting cylinders. Located in Zhoushan, China, near the Ningbo Beilun harbor, the company employs 11 to 50 people and operates a factory. Their products are essential components for a wide range of machinery, including 30-40000 gram plastic injection machines and various extruder machines (15-250mm single screw, 30-130mm cone, parallel double screw, rubber screw). They also produce specialized items like GH113 nickel base alloy stud machine muffs and offer alloy welding (PTA's bimetal). Zhoushan Dinghai Chenshi Machinery Co., Ltd adheres to ISO9002 international quality control standards, utilizing processes such as nitration, grinding, polishing, and binary-metal-alloy welding. The company provides comprehensive services, including OEM and ODM, custom processing based on samples, and assistance with surveys, drawings, and designs for both domestic and international machinery plants.
Bimetallic Screw Barrel (CS009)
Extruder Screw and Barrel for Blowing Film Machine (CS007)
Gear Box (CS005)$2000
Stainless Steel Screw (CS004)$2000
Conical Twin Screw Barrel
Single Screw and Barrel for Extruder (CS010)
Rubber Screw Barrel (CS008)
Single Screw and Barrel for Injection Molding Machine (CS002)