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About Us

Shandong Sino Steel Co.,Ltd is a comprehensive company for steel production and trading. Its business includes production, processing, distribution, logistics and import& export of steel. The registered capital of our group is 100 million RMB. Our main products are hot rolled steel coils, cold rolled steel coils, galvanized steel coils, prepainted steel coil, corrugated sheets and tinplate coils,etc. 

Our company has a complete process chain, relying on high-quality cold-rolled steel coils SPCC of Laiwu Steel Group and Jinan Steel Group to produce high-precision galvanized steel coils, galvalume steel coils, prepainted steel coil, corrugated sheets and other products. We actively develop new building materials according to the market, such as nano anti-corrosion insulation panels, prepainted aluminum coils, printed color coated coils , etc. At the same time, we also control companies that produce tinplates, colored stone tiles, stainless steel, some of which are expected annual production capacities as follows: 300,000 tons of galvanized steel coil and galvalume steel coil, 200,000 tons of prepainted steel coil.
Sino Building
At present, our products have been sold to Southeast Asia, Middle East, Africa, South America and other regions which include more than 200 countries. In 2019, we achieved sales of US $ 200 million and won the title of “Ten Best Steel Enterprises of 2019” given by Chinatsi.com(China steel industry website). 
The goal of Shandong Sino Steel Co.,Ltdis to promote the healthy, rapid and harmonious development of Chinese steel industry. We will, as always, be honest and pragmatic in order to maintain and strengthen our brand. We will continue to provide high-quality products and first-class services to customers at home and abroad, and sincerely hope to establish long-term win-win cooperation with customers at home and abroad.
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Sales of ＄450 millon a year
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Sales to 150+ countries
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Annual output of 500 thousand tons

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Hot Dip Galvanizing Production Process

 Chromated, Oiled/ non-oiled
 Zn Plating Layer (20-275g)
 Cold Rolled Steel Sheet
Production Process
Shandong Sino Steel Co.,Ltd is a leading supplier of galvanized steel coils in China. In 2015, the first production line was put into production, with an annual output of 100,000 tons and a coating thickness of 0.11-0.8mm.
In 2019, the second production line was put into production, with an annual output of 150,000 tons and a coating thickness of 0.3- 2.5mm. We have sufficient galvanized steel coil stock for fast delivery.
The production and processing of galvanized steel coils can be divided into three steps: first, the entire coil is pickled to remove rust and dirt, so that the surface of the galvanized steel strip can achieve a bright and clean effect; after pickling, pass ammonium chloride or zinc chloride It is cleaned in an aqueous solution or a mixed aqueous solution of ammonium chloride and zinc chloride, and then sent to the hot-dip plating tank for the galvanizing process; after the galvanizing process is completed, it can be put into storage and packaged.
Galvanized steel coil has a wide range of applications, and its advantage is that it has a long anti-corrosion period. It is mainly used for house roofing sheets building materials, home appliances, office panels, wall sheets, automotive panels, construction and substrate of prepainted steel coils.
Production Process
Production Process

Pre Painted Galvanized Steel Coils Structure

 Top Finish Coating (PE/HDP/PVDF, etc.), When the thickness is above 20um, it can effectively prevent the damage of ultraviolet rays and harsh environments to the coating.
 Primer Coating
 Surface Treatment Layer(Chromate Coating)
 Metallic Coated Layer (zinc)
 Steel Substrate (Cold Rolled Steel Sheet)
 Metallic Coated Layer (zinc)
 Surface Treatment Layer (Chromate Coating)
 Back Primer
 Back Finish Coating(Epoxy, Polyester )
Pre Painted Galvanized Steel Coils Structure
Production Process
Shandong Sino Steel Co.,Ltd is a leading supplier of prepainted steel coils in China.
In 2010, the first color coating production line was put into production, with an annual output of 80,000 tons and a coating thickness of 0.3-0.8mm.
In 2013, the second color coating production line was put into production, with an annual output of 150,000 tons and a coating thickness of 0.3-1.0mm.
In 2016, the third color coating production line was put into production, with an annual output of 150,000 tons and a coating thickness of 0.12- 1.0mm.
We supply all RAL code colors, customized colors and special patterns can be made, such as wood grain, flower print, camouflage, and brick pattern.
We manufacture thickness is 0.11-2.5 mm, width is 30-1500 mm, and PE, SMP, HDP and PVDF painted steel coil to meet different customers needs.
To guarantee the prepainted steel quality, our zinc coating, painting thickness, color, gloss, net weight, packages, thickness, all guarantee with customers requirements.
PPGI coil for construction is used for roofing, guttering, sandwich panels, industrial building facades, cold storage panels, and rolling doors.
Pre Painted Galvanized Steel Coils Structure

Shandong Sino Steel

Shandong Sino Steel Co., Ltd. is a comprehensive company for steel production and trading. Its business includes production, processing, distribution, logistics and import& export of steel.

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WhatsApp: +86-17669729735
Tel: +86-532-87965066
Phone: +86-17669729735
Add: Zhengyang Road 177#,Chengyang District,Qingdao,China
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