Qidong Kewei Electronics Co., Ltd. currently has three advanced fully automatic SMT production lines, including fully automatic printing machines, high-speed placement machines, general-purpose machines, reflow ovens, automatic optical inspection machines (AOI) and other high-precision advanced equipment.

Qidong Shuanglian Machinery Co., Ltd.'s main products include: construction elevator accessories, construction elevator fall arresters, construction elevator floor callers, construction elevator motors, construction elevator transmission mechanisms, etc. The company has gained a good reputation in the industry by virtue of its excellent production equipment, years of focus in the technical field, perfect testing methods, and product reliability.

Qingdao Xinterui Electronic Technology Co., Ltd. has more than 20 sets of production and processing equipment including fully automatic printing machines, fully automatic placement machines, reflow soldering machines, optical inspection machines, etc., focusing on the development and production of various controllers including temperature controllers, wire controllers, motor controllers and instrumentation control systems.

Qingdao Zhongruitai Soft Control Technology Co., Ltd.

Qingdao Zhengyin Door Industry Co., Ltd. is a professional fireproof roller shutter company integrating scientific research, production, sales, installation and commissioning, and after-sales service. The main products include special fireproof roller shutters, folding and lifting fireproof roller shutters, steel composite fireproof roller shutters, ordinary steel fireproof roller shutters, smoke barrier walls, roller shutter machines for fireproof roller shutters, fireproof roller shutter controllers, fireproof doors, entrance doors, large industrial roller shutter doors, and building doors.

Q Energy Solutions Q Energy Solutions is an Australian owned company with manufacturing and operating facilities in Gympie and Mount Isa, servicing Cattle Stations and Remote Communities throughout Central and Northern Australia.Specialising in isolated Power Generation for Electrical Reticulation and Water Pumping. Our company has

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Qifa Electric (Shanghai) Co., Ltd. is a professional manufacturer of explosion-proof box products, explosion-proof distribution boxes, explosion-proof control boxes, explosion-proof junction boxes and other explosion-proof electrical appliances. The main products include: explosion-proof lamps, explosion-proof distribution boxes, explosion-proof control boxes, explosion-proof junction boxes, explosion-proof maintenance boxes, explosion-proof instrument boxes, explosion-proof distribution cabinets, stainless steel explosion-proof control boxes, explosion-proof button boxes, explosion-proof axial flow fans, etc. The products are widely used in metallurgy, petrochemical, electric power, environmental protection, petroleum, chemical gas, natural gas, oil fields, gas stations and other industries.

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The fire safety hazard inspection and acceptance system and the building electrical fire detection system are professional systems used to inspect and accept fire safety hazards in buildings and places. The system can accurately and efficiently identify and inspect various fire hazards, and provide effective prevention and control measures to ensure fire safety.