Shandong Zhonghai Chemical Group Co., Ltd. is a key large-scale refining and chemical enterprise in Shandong Province. It is a large-scale comprehensive group enterprise integrating petrochemicals, fine chemicals, real estate development, refined oil sales, warehousing and logistics, port operations and retail terminal expansion.

Shandong Zhenchen Heavy Industry Machinery Co., Ltd. [Tel: 17864801999 (WeChat ID: 17864801999)] is a professional manufacturer of primary coolers, final coolers, tubular furnaces, primary coolers/final coolers rubber gaskets, and wide channel fully welded plate heat exchangers.

Shandong Zhengrui Electronics Co., Ltd. has been engaged in the research and development, design and production of Beidou/GPS satellite synchronized clocks, network time servers, time synchronization, satellite timing systems, SF6 gas leakage online monitoring, switch cabinet wireless temperature measurement, cable temperature measurement and other system products for 20 years. It has unique advantages in the domestic industry. Contact number: 13053390873 0533-3582840

The factory has advanced equipment, complete specifications, reasonable prices, and special specifications can be customized according to user requirements. The sunshade net is the latest special covering material for agriculture, fishery, animal husbandry, etc. It has strong tensile strength, aging resistance, corrosion resistance, radiation resistance, and is lightweight. It is mainly used for vegetables, shiso, flowers, edible fungi, seedlings, medicinal materials, ginseng, ganoderma lucidum and other crops.

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H-beam production line, H-beam welding and straightening machine, H-beam production equipment

Shandong Zhihang Road and Bridge Construction Co., Ltd. is a guardrail manufacturer. The guardrail manufacturer mainly produces: highway guardrails, guardrails, spray-coated guardrails, corrugated steel guardrails, plastic-coated guardrails, galvanized guardrails, highway guardrail posts, column caps, brackets, anti-glare panels, anti-blocking blocks, traffic facilities and other products. The company is approved by the Ministry of Transport to specialize in the production of highway corrugated beam guardrails, posts and supporting products and other traffic safety facilities.

Shandong Zhonghao Law Firm (formerly Jining City Legal Advisory Office), established in 1984, is one of the largest and most powerful law firms in Shandong Province. Its legal services involve many fields such as domestic trade, corporate securities, intellectual property, finance and insurance, construction and real estate, corporate joint-stock restructuring, bankruptcy liquidation, business negotiations, criminal defense, etc. Contact number: 0537-2216060

Shandong Zhongjie Special Equipment Co., Ltd. is a manufacturer specializing in Shandong carbon dioxide storage tanks, liquid oxygen storage tanks, liquid argon storage tanks, liquid nitrogen storage tanks, and LNG storage tanks; the company covers a total area of ​​200,000 square meters, with a main workshop area of ​​83,000 square meters. It currently has more than 1,000 employees, including 220 engineering and technical personnel and 82 mid- and senior technical personnel.

Shandong Zhongwang Hengli Environmental Technology Co., Ltd.'s main business includes customized environmental protection equipment, water treatment chemicals and operation and maintenance services, water treatment projects, cleaning projects and other products and services. The company integrates R&D, design, production, installation, commissioning and after-sales.