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Formerly named the Tianlan (SkyBlue) Environment-friendly Electric Equipment Company when it was founded in 1992, we Kelantechnics have been devoting ourselves in electrostatic precipitation technologies, fume/dust purification equipment & exhaust emission control solutions for 30 years in a row.

Air pollution is cutting global life expectancy by an average of 1.8 years per person, making it the world's top killer. While we cannot control outdoor air quality, we can choose to protect us and create a clean commercial kitchen. Our mission is to create healthy indoor commercial kitchen and industrial production room for people.

Henan 4.0 Automation Equipment Co., Ltd. is a manufacturer providing one-stop services for industrial automation. It primarily distributes the full range of industrial control products from brands such as Siemens, Schneider Electric, and ABB, and independently develops and manufactures GKONE brand distributed PLC I/O modules and frequency converters. Simultaneously, the company also engages in the production, R&D, and sales of low-voltage electrical products, including fan filters, heaters, temperature controllers, humidity controllers, control transformers, terminal blocks, cabinet lights, cable trays, and various accessories, and provides complete cabinet assembly services.

Suzhou Huazhijie Purification Technology Co., Ltd.: A Pioneer in Air Purification Solutions

Xinxiang North Filter Co., Ltd. Was founded in 2000, specializing in the development and production of various water treatment and purification equipment and filter elements. The company has more than 30 sets of various production and testing equipment, domestic advanced mini pleat HEPA air filter production line and SH-H1015 HEPA filter automatic scanning test bed, and has built a thousand-level clean room. All HEPA filters are completed in the cleanroom and pass the scanning test one by one. The company's leading products are divided into air filter, water filter, oil filter, water - oil separation equipment four series of products. Air filters include primary medium efficiency filter, bag filter, V bank filter, HEPA filter, high efficiency air outlet and fan filter unit. The water filter series includes wire-wound filter element, melt blown filter and microhole folding filter element series, and large-flow filter element series. The company has more than 10 years of export experience, export to the United States, Canada, The United Kingdom, South Korea, Russia, Italy, Indonesia, Pakistan, Chile, Peru, Brazil, South Africa and other more than 100 countries and regions, by domestic and foreign customers praise.

Kinglei company mainly develops/produces all kinds of air filter products. We has two production bases in Shunde and Hefei, , We are the Guangdong high-tech enterprise, the technology-based small and medium-sized enterprise, also the star enterprise. We have passed ISO9001: 2015 certified, and national quality integrity benchmark. Our annual production capacity up to 3 million sets of various filters. The product types include HVAC filters, air purifier filters, fresh air filters, household/commercial range hood filters, and microwave ovens filters, and chemical filters. Among them, HVAC filters include panel filters, bag filters, HEPA filters with/without separator and Ultra HEPA filters; Air purifier filters include PM2.5 filters, activated carbon filters, photo catalyst filter or cold catalyst filter and other functional filters; Grease fume purification filters include European hood filters and commercial hood filters. At present, our company's products are widely used in various ventilation systems such as household, commercial and industrial.

Who we are:

IMETAL Company: Your Global Partner for Metal-Related Solutions

ZENGO Group Limited has over twenty years of experience in manufacturing high-quality HVAC and refrigeration products.

Founded in 2006, Foshan Zhongjing Purification Equipment Co., Ltd is a provincial high-tech enterprise integrating design, development, production, sales and installation services for high-class purification equipment. Located in Shunde Foshan, which is a famous manufacturing city in China, the company covers an area of more than 15, 000 square meters and has more than 150 employees, thereinto, more than 20 R&D personnel and more than one-third production technicians.

SUZHOU FORST FILTER Co., Ltd is a professional enterprise for air inlet filtration and environmental protection equipment, with researching, development, design, manufacturing, sales, and service together. We introduced advanced technology, and equipment, high efficiency filter cartridge production line, integrated dispensing equipment and advanced stamping, welding, metal processing equipment. Filter core products is imported from United States, Japan, Korea, Europe etc. We can ensure reliable and advanced quality.

Dongying Qinghua Trading Co., Ltd. ----- takes "green energy saving, low carbon and environmental protection" as its development concept, connects with the national strategy, promotes the transformation and upgrading of enterprises, and actively enters into new energy central air conditioners, new energy ground source heat pumps, energy-saving Large-scale refrigerated central air-conditioning equipment such as multi-line and air-cooled modular machines. Qinghua Trading relies on innovation and professional operation as its business philosophy. Since 2000, it has actively promoted the layout of "transition from traditional sales to high-tech energy-saving and environmentally friendly industries". It is the earliest and most complete central air-conditioning sales and installation in Dongying. One of the design companies. For a long time, the company adheres to the corporate philosophy of "the sea is inclusive of all rivers, and the virtues are great. Quality first, integrity management, cooperation and win-win", based in Dongying, and gradually develop and grow in the common growth with customers, and have won wide recognition from all walks of life and very sure.

Guangzhou Olansi Healthcare Co., Ltd is professional air purifiers, hydrogen water maker, hydrogen water machine, hydrogen water generator, hydrogen water bottle, hydrogen water pitcher, hydrogen water jug, best hydrogen water machine, hydrogen rich water bottle and water purifier manufacturer from China.

Established in 2007, Zhengzhou Ailin Technology Co., Ltd (also known as Henan Yifan Filter Co., Ltd) specializes in the manufacturing of high-quality air purification and filtration products with a global reach. Our company spans over 3000 square meters and employs 50 staff members, including 11 research technicians.

Jiaxing Subo Pipe Industry Co., Ltd. is located in Haiyan Zhongqian Industrial Park with beautiful scenery and convenient transportation. It is a professional manufacturer integrating R&D and sales of flexible ventilation duct, including main products of aluminum foil duct, smoke lampblack machine aluminum foil duct, air-conditioning and refrigeration air duct, activated carbon air filters, central air-conditioning insulation duct, ventilation systems equipment and other accessories. After years of unremitting efforts, the company's technology in the field of flexible ventilation duct research and development has been quite mature. In the process of development and growth, the company has consistently adhered to the "integrity, pragmatism, innovation" business principles, and constantly improve the operating system, with "quality first, credit second" production purposes to improve product quality and customer experience. Our company has won unanimous praise from domestic and foreign customers. All staff of the company warmly welcome new and old customers from all walks of life to visit and cooperate with us to create a better future.

Snyli Environmental Technology (Shandong) Co., Ltd was established in 2010, is a professional service provider of air purification products integrating R&D, production and sales, with registered brand- SYNLI.

Wenzhou Xitold Electric Co., Ltd. is located in yueqing City, Zhejiang Province, known as the capital of the electrical industry. Situated to the south is the first peak of the renowned Yandang mountain range, and to the north lies National Highway 104. The company is well-connected with the Ningbo-Taizhou-Wenzhou Expressway to the east and Wenzhou Airport and Railway Station to the west. The area is characterized by industrious people, picturesque landscapes, comprehensive facilities, and convenient transportation, providing a solid industrial foundation for the development of Xituo Electrical.

Suzhou KELSEN Air Filtration System Co., Ltd has been a leader of designer & manufacturer in the field of contamination control for over 15 years in China. During this time we have proficiently designed and manufactured many types of equipment. We are the preferred OEM vendor of several world-famous filtration companies, especially for pharmaceutical equipment, such as FFU, HEPA box, BIBO, laminar flow cabinet, etc. We also can supply full range of air filters from pre filter to ULPA filter.

10+ Years Professional Ventilation Equipment Manufacturer

We are mainly dealing with low voltage electrical products for switchgear board and automation industry, such as panel filter and fan, panel heater, thermostat and hygrostat for panel, flexible busbar, terminal block, DIN rail, wiring duct, etc. We are aiming to provide one- stop-solution for panel builder.

Sichuan Huajie Purification Equipment Co., Ltd was established in 2022 known as a sustainable development enterprise, specialized in Manufacturing, Research & Development and Marketing all kinds of air filter media. Company own a group of high level professional staff and advanced production, quality inspection equipment.

Xinxiang Lifeierte Filter Corp., Ltd was situated in Xinxiang city, Henan province, China. (Stock name: Xinxiang Filter, Stock No. 837936, trade mark: LEFILTER) is specialized in researching, developing and manufacturing Hydraulic Filtration, Water Filtration, Air Filtration and other special equipment for environmental protection since 2008. And certified according to DIN ISO 9001 + ISO 14001 + ISO 45001, CE, ect.

Wuxi Licheng Smart Technology Co., Ltd. - Pioneering Cleanroom Solutions for High-Tech Industries

Xinxiang Feiyu clean Tech Co. Ltd, founded in 2025 specializes in exporting on air filter, water filter, oil filter and various clean equipment as clean room, RO, water systme, Air shower, pass through window, oil purifier and so on.

Dongguan Mingkai Electromechanical Co., Ltd. Establish in July 2002, Factory space 6000m2.

Zhongshan Gangli Refrigeration Fittings Co., Ltd. is an enterprise that integrates research and development, design, production, and sales of refrigeration fittings. It was founded in 1993 and has evolved from a manual workshop in the 1990s to a modernized company with over 30 years of hard work and continuous exploration. Adapting to the trend of the times, Gangli always maintains its craftsmanship spirit through strict modern management, forward-looking market layout, excellent product quality, and continuous expansion into various industries. It has established six business divisions including service valve division, four-way valve division, brass parts division, pipe fitting division, heat exchanger division and electronic expansion valve division at its headquarters in Zhongshan. Additionally, it has set up 11 wholly-owned subsidiaries across China. Currently employing over 3500 employees with more than 800 advanced equipment and covering a total factory area exceeding 400 thousand square meters; Gangli has become a renowned modern enterprise in the industry. Its main customers include well-known domestic and international companies such as Gree, Midea, TCL, Haier, Hisense, Daikin, AUX, Panasonic, LG, Carrier, Galanz, etc.

BRESPALIN is based on around 20 years' experience of manufacturing Air purifying, Fresh air system, Ventilation system and Industrial fans. Currently, we are invested by several factories.

Xinxiang City Huahang Filter Co., Ltd. Was founded in 2003, specialized in filtration system over 10 years. Huahang Filter plant covers an area of 3000m2, and we have more than 70 professional staff included technology and quality control team. With all kinds of advanced manufacturing and processing equipment and professional technology team, huahang will give you the best solutions on filters.

Midea Building Technologies(MBT) as a key part of Midea Group, the MBT business division was established in 1999 and was the first to produce VRF in China. Being a global HVAC industry leader and premium supplier of integrated building solutions, MBT has contributed significantly to commercial AC product development. During the developing process, MBT kept growing through internationalization. It set up joint ventures with Siemens, Bosch, and Siix respectively in order to expand in diferent sectors. In 2016, CLIVET was acquired by Midea for further optimizing the global layout.

Hengshi(Langfang) Precision Machinery Manufacturing Co., Ltd was founded in August, 2019, We have a technical team with more than 13-year experience in the production and manufacturing of honeycomb products, it has multiple independently developed honeycomb stamping equipment, honeycomb laser welding equipment and masters advanced high-temperature vacuum brazing technology. Also with a large number of equipments which can meet customers' needs for EMI/RFI/EMC shielding honeycomb. We can support design, production and technical guidance of those metal honeycomb products.