Established in 2003, Letone is an industry-recognized high-quality rubber hose manufacture and service company, which devotes to the production, R&D, and sale of rubber compounds, rubber hoses & fluid connectors and rubber-plastic seals. Thanks to its stable quality and good reputation in the market, Letone has won the"Top Ten Rubber Hose Enterprises in China" issued by the China Rubber Industry Association Rubber & Belt Branch for many consecutive years. On 15th Nov. 2021, Letone (Stock Code: 832225) is listed on the Beijing Stock Exchange.

Qingdao Huicai Machine Manufacture Co., Ltd. is a joint-stock enterprise founded based on former Qingdao Jiaonan Huicai Rubber Machinery Factory. Founded in October 1996, it has over ten years' history in manufacturing rubber machinery. It is a specialized manufacturer integrating research and manufacture of various specifications of plate press, rubber mixing mill etc. Rubber machinery and tyre machinery. Due to its rich technical force, advanced manufacturing technology, complete test means and quality after-sales service, the company enjoys good reputation in this industry of China. Its products enjoy a very high reputation in the domestic and international market.

Guangzhou Kingmetal Steel Industry Co., Ltd., is an Industry Group Company. It is a professional company in designing, producing and selling steel pipe, pipefittings and prefabricated house. We have our own big factories with modern machine line to make high quality products, which is mainly to be exported to oversea markets.

Ningjin NINGHAO Machinery Co.,Ltd.Founded on No November19,2010.It is located in No.2 taishan road,econnmic and technological development zone,ningjin county,dezhou city,shandong province.It covers an area of 120 mu ,with more than 80employees,among has all kinds of advanced production and inspection equipment.

Xiamen Better Silicone Rubber Co., Ltd, which is make molding and produce silicone rubber products, plastic injection parts and LSR products

Tianjin Henghua Pipeline Technology Co., Ltd is the member of HeBei Bohai GROUP a professional manufacturer. As far, we have three branches for 3 main machines. We adhere to "quality oriented, credibility first" business philosophy, striving to provide users around the world perfect machines at the advantages of our strong brand, technology and services.

Hebei Qiruite Rubber and Plastic Products Co., Ltd. is a high-tech enterprise gathering the research, production and sales as one, specializing in the production of high-performance air-conditioning hose and assembly for cars, buses, heavy trucks etc. The products tested by China Petroleum & Chemical Supervision and Inspection Center, completely meet the national standard. Quality is insured by PICC.

Hefei Huayun Machinery Manufacturing Co., Ltd. is a large professional machinery supplier in China. With our factory founded in the 1990s, we have supplied metallurgical machinery and auxiliary equipment and spare parts to nearly 1, 000 companies at home and abroad. Boasting a strong technical team LED by a professor who has been commended by the State Council, we also have close technical cooperation with the East China Engineering Science and Technology Co., Ltd. (formerly the Third Research Institute of the Ministry of Chemical Industry). Located in the national-class Hefei Baohe Industrial Park, we have workshops covering an area exceeding 6, 000 square meters. Utilizing a large quantity of lathes, dozens of fine CNC machine tools, and a range of testing equipment, our quality control system has been certified as meeting the ISO9001: 2000 standard. We have a strong sales team comprised of highly trained personnel who are experts in communicating with clients in different areas and from different cultures. Striving for complete customer satisfaction, we are confident that our quality products, comprehensive services and competitive prices will best meet your expectations. Not content with our present achievements, we are continually striving to find ways in which we can help both partners and society. Contributing our ideas and endeavors to improving the Chinese mechanical industry, we hope to further market competition and cooperate with companies worldwide for mutually beneficial growth.

In 2013, Shanghai Limwell New Material Tech. Co., Ltd. Started the operation in Shanghai, China,

Shanghai Jianqi Chemical Co., Ltd. Established in 2019, is dedicated to the mission of "professional business capabilities, sincere service spirit, " committed to providing excellent global supply services for agricultural chemical products to customers. The company upholds a high degree of professionalism and service standards in the field of agriculture to meet the needs of customers.