Home » About Us
About Us
Our History

 SHAN DONG SUN UNION INTERNATIONAL TRADE Co., Ltd, located at zi bo new materials trading center in China, is specialized in the hot DIP galvanizing line, color coating production line, pickling line, hydraulic station, hydraulic cylinder, PPGI, ASP Steel sheet.

Our factory has a higher visibility and good reputation in the metallurgical equipment . Especially, Our factory has focused on metallurgical equipment Research and manufacturing for more than 10 years, and cooperation with national major design institutes. now we have the ability to design ,manufacture ,install and debug for the annual output of 600,000 tons acid picking line ,the annual output of 150000-300000 tons hot dip galvanizing line, the annual output of 150000-200000 tons color coating production line, various standard and non-standard hydraulic cylinders, ultra-high pressure manual, electric hydraulic station .

Our PVC roofing belong to the national invention patent products, and passed the ISO9001: 2008 quality control system.

Our company pursues the goal is the customer trust, the sound reputation, the reliable brand supplier, with strict demands on themselves. As a reliable supplier, SUN UNION engaged in making rapid progress & cooperated to all importers by giving high-quality product with mutual benefit to achieve our wonderful future.


Our Factory

Our factory has a higher visibility and good reputation in the metallurgical equipment and CMC other fields. Especially, the factory has focused on metallurgical equipment

Research and manufacturing for more than 10 years, and cooperation with national major design institutes. now we have the ability to design ,manufacture ,install and debug for the annual output of 600,000 tons acid picking line ,the annual output of 15.3 million tons hot dip galvanizing line, the annual output of 15-20 million tons color coating production line, various standard and non-standard hydraulic cylinders, ultra-high pressure manual, electric hydraulic station .the products have been exported to Europe, Southeast Asia, Africa, Australia, and America ,etc. 


Our Product

1:Hot dip galvanizing line

2:Color coating production line

3: pickling line

4:Hot dip galvanized steel coils

5: Color coating steel coil

6: Hydraulic machines

Product Application

( 1)Hot dip galvanizing line

   The purpose of the Continuous Galvanizing Line (CGL) is to apply a coat of zinc onto the surface of steel sheets in an effort to increase their corrosion resistance. There is a wide range of control of zinc coat thickness, and the galvanized steel sheets are used for a broad range of purposes, including construction materials, automobiles and electrical appliances.

     (2) Color coating production line

This is a pre-coating line that forms coats through advance application and baking of coating materials onto strips produced by Continuous Galvanizing Lines (CGL; to enhance corrosion resistance) and Continuous Annealing Lines (CAL; to improve properties, such as strength and elongation). It is an add-on for visual aspects of strips, such as color and gloss, as well as for protective elements, such as weather and corrosion resistance.

(3) pickling line

Pickling is a metal surface treatment used to remove impurities, such as stains, inorganic contaminants, rust or scale from ferrous metals, copper, precious metals and aluminum alloys.A solution called pickle liquor, which usually contains acid, is used to remove the surface impurities. It is commonly used to descale or clean steel in various steelmaking processes.

(4) Hot dip galvanized steel coils

It is ideal for a wide range of applications,such as pre-engineered buildings, architectural panels, roofing, siding, cladding, and many other building components.and also used back plate of appliance; wide range of construction, furniture industry, transportation industry, etc.

(5) Color coating steel coil

Industrial / domestic roofing and wall cladding,Cold storages and ware houses,False ceiling, interiors venetian blinds,Air ports, atriums in malls and showrooms,White goods (appliances) such as refrigerators, deep freezers, washing machines etc.Electrical control panels,Roofing tiles,Drum ends,Housings & casings,Industrial furniture & racking,Office furniture,Bus bodies, railway coaches and luxury coaches etc.

(6) Hydraulic machines

In the machine tool industry, at present, 85% of the machine drive system adopts hydraulic transmission and control, such as grinding machine, milling machine, planer, broaching machine, press machine, shearing machine and combination machine tool etc.In metallurgical industry, hydraulic technology is adopted for electric furnace control system, control system of rolling mill, open-hearth loading, converter control, blast furnace control, strip running deviation and constant tension device.Widely used in engineering machinery hydraulic transmission, such as excavators, tire loader, truck crane, crawler bulldozers, cranes, motor scraper, roller grader and vibration, etc.In agricultural machinery, hydraulic technology is also widely used, such as combine harvester, tractor and plough.In the automotive industry, hydraulic suvs, hydraulic self-discharging vehicles, hydraulic high-altitude operating vehicles and fire trucks are all used hydraulic technology.In the textile industry, there are plastic injection molding machines, rubber vulcanization machine, paper machine, printing press and textile machine, etc.In the shipbuilding industry, the application of hydraulic technology is very common, such as hydraulic dredger, salvage vessel, piling vessel, oil production platform, hydrofoil, hovercraft and auxiliary engine.In recent years.And tracking system in the sun, the wave simulator, the ship driving simulator, earthquake reappearance, firing rockets help pei, space environment simulation and high-rise building shock system and emergency brake device not ready, also adopted the hydraulic technology.All in all.Hydraulic technology can be used in all fields of engineering, where there are mechanical equipment.