Shandong Guanshen Machinery Technology Co., Ltd. is an enterprise specializing in the production of precision linear guides, sliders, ball screws and other linear motion supporting products. The company currently has more than 60 employees and a factory area of ​​10,000 square meters. It has devoted itself to research and professional manufacturing in the field of transmission components and has accumulated rich experience.

Shandong Guanxian Ruiya Electric Power Equipment Co., Ltd. specializes in selling: wear-resistant elbows, ceramic wear-resistant elbows, lined ceramic elbows, ceramic elbows, wear-resistant ceramic elbows, ceramic tees, wear-resistant ceramic pipes, ceramic wear-resistant pipes, reducers, lined ceramic elbows, wear-resistant reducers, etc.

Zaozhuang Hongchi Machinery Co., Ltd. has always paid attention to product quality and adhered to the principle of "quality is the life of the enterprise". In the field of rotary joints and mechanical seals, it has continuously innovated, reformed, designed and manufactured generations of ideal energy-saving products. The company is a professional company specializing in fluid dynamic and static transmission sealing devices and fluid drainage winding connection pipe fittings, and developing pipelines and pipeline connectors.

Shandong Huamao Ventilation Equipment Co., Ltd. produces spiral duct series (galvanized steel plate, stainless steel plate), rectangular duct series (common plate flange, angle steel flange), muffler series (silencer static pressure box, impedance composite muffler, resistive muffler, etc.), air valve series (regulating valve, check valve, etc.), etc.

Shandong Boyuan Metal (flange blank manufacturer 0635-8885769) specializes in sales: flanges, flange blanks, stamped flange blanks, forged flange blanks, flat welding flange blanks, marine flange blanks, national standard flange blanks, non-standard flange blanks, thermal expansion flange blanks, etc., reasonable prices, factory direct sales, quality assurance, welcome to call for consultation

Shandong Jinli Group, established in 1999, is a manufacturer with the most complete products in the field of construction machinery parts in China, mainly engaged in the research and development, production and sales of hydraulic cylinders, servo electric cylinders, hard pipe assemblies, hose assemblies, hydraulic oil tanks, hydraulic integrated valves, hydraulic fluid parts, structural parts, cabs, balancing irons and other products, as well as laser blanking, investment in new energy industry, and general contracting of power transmission and transformation. At present, it has provided high-end parts product solutions and service support to more than 50 customers around the world. The Group currently has three production bases and five factories, with total assets of 1.8 billion yuan and more than 2,200 employees. Under the jurisdiction of the Group, there are three state-level high-tech enterprises and five small and medium-sized science and technology enterprises, with an annual production capacity of 1 million high-pressure cylinders, 10 million hydraulic pipes, 20 million hydraulic fluid parts, 50,000 sets of hydraulic oil tanks, 50,000 sets of cabs, 50,000 sets of balancing irons and 30,000 sets of structural parts, which is a single champion product of Shandong manufacturing industry. The subsidiaries of the Group have successively won the national key support of the \'Little Giant\

Shandong Kuntai Hydraulic Technology Co., Ltd. is a professional enterprise integrating product research and development, sales and installation of hydraulic technology and fireproof covers. The company's main business is the intelligent escape of integrated pipe corridors. The company mainly produces hydraulic manhole covers, intelligent manhole covers and other manhole cover products.

Shandong Lianggong Valve Office mainly sells: nuclear-grade valves, general industrial gate valves, globe valves, check valves, ball valves, butterfly valves, high-temperature and high-pressure valves, nuclear-grade gate valves, nuclear-grade check valves, nuclear-grade globe valves, etc. Products are widely used in: nuclear power military industry, petrochemical industry, water conservancy and water affairs, metallurgical alumina, steel, mining, coal chemical industry and other industries. Shanghai Lianggong Valve Factory Co., Ltd. was founded in 1946. In the early days of the factory, it became a brand enterprise of the old Shanghai national industry. After the founding of New China, Shanghai Lianggong Valve Factory actively participated in my country's socialist construction. In view of the blank of domestic industrial valves, Shanghai Lianggong participated in the whole process of self-reliance and independent production of industrial valves and made contributions.

At S&D Machine & Tools Inc. we pride ourselves in offering innovative solutions for the automotive, natural gas, and food industries.

Shandong Maijinli Environmental Protection Equipment Co., Ltd. is located in Jinan, the hometown of Li Qingzhao, which has convenient transportation and beautiful scenery. The company integrates design, research and development, production, marketing and other operations. It has damper doors, suction and delivery, flue gas damper doors, electric hydraulic damper doors, positive pressure material conveying, electric hydraulic gate valves, flue gate valves, reverse air flow conveying and other products. The registered capital is 20 million yuan, the fixed assets are 12 million yuan, and there are more than 220 employees. There are 6 departments including flue gate valves, Roots blowers, sewage treatment, desulfurization and denitrification, with a registered capital of 20 million yuan, fixed assets of 12 million yuan, and more than 220 employees. Guided by market demand, we take innovative products and serve the society as our responsibility. We have always adhered to the corporate philosophy of "dedicated operation, transparent pricing, and thoughtful service".