Qingdao Binsheng Wood Industry Co., Ltd. is a high-tech enterprise integrating research and development, manufacturing, and marketing, specializing in the production of solid wood doors and solid wood composite doors. Binsheng wood industry has more than 100 stores in more than 20 provinces and autonomous regions in the country, serving a total of more than 1 million families, the production of high-end solid wood doors, solid wood doors are recognized by the majority of customers.

Bingsheng Wood Industry has got the ISO9001:2000 international quality management system certification and won the China building materials issued by the monitoring center "CTC health certification and quality certification certificate", its products with noble, elegant, simple, classic do old as the core product positioning, new Chinese, American, European, light extravagance and new classical, modern, contemporary and contracted, fashionable pastoral, Marine leisure household system as the main style, China international door industry exhibition in Beijing for many times, all wooden door design gold award.

Qingdao Ketai Heavy Industry Machinery Co., Ltd. is a national high-tech enterprise dedicated to the research and manufacturing of road construction machinery and high-end structural parts, which is rated as the vice president unit of Pavement and Compaction Machinery Branch of China Construction Machinery Industry Association. Thai heavy industry after more than ten years of development, business covers hydraulic roller series products, including fully hydraulic single drum, and hydraulic double steel wheel, hydraulic tire trash compactor, 4 big series, more than 60 varieties of products, tonnage covering 3 tons to 36 tons, covers the pavement compaction required for an engineering construction project, is one of the top ten brands "in the" China road machinery products.

Ketai Heavy Industry has established the perfect quality guarantee system, and has passed ISO9001:2015 quality system certification, is now with roller business and structure of business operations, already have all the material forming, welding processing, production of coatings, such as complete production capacity and perfect quality management system, mainly for the domestic and international numerous well-known engineering machinery, mechanical enterprise logistics support a host of products such as excavators, forklifts, rollers important structure, annual production capacity of 20000 tons.

Shandong Huashun heavy industry group co., LTD., with a registered capital of 60 million yuan, covers an area of 120,000 square meters and employs 380 people, is a high-tech enterprise specializing in the research and development, production, and sales of cold-formed hollow steel, high-strength precision welded pipe and head series products of civil and nuclear power pressure vessels.

The Huashun heavy industry has passed the ISO9001:2015 quality management system, ISO/TS16949 automobile industry quality management system certification, the European Union CE system, has won the "China cold bending steel outstanding enterprise", "Chinese secondary cold bending steel industry production qualification enterprise", "production safety standardization level 2 enterprise", "AAA credit enterprise", "China quality service prestige AAA grade enterprise" and other honorary titles. Huashun Heavy Industry Co., Ltd owns two R&D platforms, namely "Municipal Small and Medium Enterprises" "One Enterprise One Technology" R&D Center, and "Tai’an City Metal Material Forming and Intelligent Control Industry Research Institute", and has applied for and obtained 9 patents.

Zhongshan Gudi Electric co., LTD. is a company specializing in the production of traditional wall switch products, intelligent switch and low voltage electrical appliances of technology-based manufacturing enterprises, which switch mold factory, product oil spraying paint factory, product research and development center, product manufacturing center, quality control center, marketing center light department, is an independent research and development manufacturing ability of electrical products manufacturing enterprises.

Gudi Switch has always been adhering to the "insist to do high-quality electrical products, create development opportunities for staff, for customers to create brand value" core values, based on the traditional manufacturing of high-quality electric products, actively import and strictly enforce the ISO9001:2008 international quality management system and modern enterprise management mode, SS set up scientific and rigorous research and development design, production, quality inspection system, all products through the CCC national compulsory certification, can provide customers with solid emperor "brand products" and "ODM stick a card" of professional services.