Hot Products

Introducing high-quality corrugated steel sheets manufactured in China, our products are made from full hard base material with a hardness range of HRB (70-90) as per ASTM/JIS standards. These sheets feature zinc coatings ranging from 60 gsm to 300 gsm, ensuring excellent durability and corrosion resistance.

Our most common widths, after corrugation, include sizes in mm such as 602, 720, 740, 762, 780, 800, 840, 910, and 1100. Available thicknesses range from 0.14 mm to 0.80 mm, catering to various applications and requirements.

Lengths are customizable, with standard options including 1830, 2135, 2440, 2745, 3000, 3050, 3660, 4270, and 4880 mm, or as per customer specifications. We also offer flexible bundle packing options, typically containing 800-1100 sheets per bundle, or as tailored to customer needs. As a leading supplier and factory in China, we are committed to providing premium products to meet your corrugated steel requirements.

SISCO, a leading supplier from China, offers high-quality hot dipped galvanized steel coils that are ideal for a wide range of applications across various industries, including automotive, construction, and appliance manufacturing. Our galvanized steel coils provide exceptional rust resistance, making them a preferred choice for customers who prioritize durability. Compared to stainless steel, these non-corrosive coils are more cost-effective, allowing industries to benefit from both reliability and affordability, With a robust zinc coating, SISCO's galvanized steel coils are among the most efficient and economical solutions for protecting bare steel from corrosion. These products are widely utilized in the production of numerous items such as washing machines, refrigerators, flashing, duct-work, car parts, drum containers, decking, HVAC systems, and more. Our hot dipped galvanized steel products cater to residential, commercial, and industrial applications, ensuring that SISCO remains your trusted factory for high-performance steel solutions in China

Aluzinc steel is a premium composite material featuring a coating made of 55% aluminum, 43.4% zinc, and 1.6% silicon, applied through a continuous hot dip galvanizing process. This innovative aluzinc-zinc coating provides exceptional corrosion resistance due to the barrier effect of aluminum combined with the sacrificial protection of zinc. Aluzinc steel showcases a bright, silvery surface adorned with small spangles, offering a striking appearance that changes with the light, As one of the fastest-growing metallic coatings globally, aluzinc steel is favored for its unique blend of strength, formability, and recyclability. This material combines the robust traits of steel with the long-term anti-corrosion benefits of the AI-Zn alloy coating, making it an economical choice for various applications. Its eco-friendly attributes, including durability, recyclability, and energy efficiency, underscore its status as a sustainable solution in the industry, Our factory specializes in manufacturing Continuously Hot Dip Galvalume (GL) Coils, adhering to the highest standards to meet the needs of our clients. As a trusted supplier in China, we are committed to delivering high-quality aluzinc products that contribute to your projects' success while emphasizing sustainability and performance

Discover our premium stone-coated metal roofing, an innovative solution that combines the natural strength of granite and steel with classic designs reminiscent of shingles, shakes, and tiles. This weather-resistant roofing system not only enhances the aesthetic appeal of your commercial properties but also adds significant value. As a leading manufacturer based in China, we take pride in providing high-quality roofing solutions directly from our factory. Partner with us to elevate your commercial spaces with durable and stylish roofing products, backed by trusted suppliers in the industry.

Introducing our high-quality steel product manufactured in China, designed to meet rigorous industrial standards, **CHEMICAL COMPOSITION:**, - Carbon: Maximum 0.15%, - Manganese: Maximum 0.60%, - Phosphorus: Maximum 0.035%, - Sulphur: Maximum 0.040%, **MECHANICAL PROPERTIES:**, - Yield Strength: Minimum 38,000 PSI, - Tensile Strength: Minimum 55,000 PSI, As a leading supplier and factory in China, we prioritize delivering exceptional products that ensure durability and performance for various applications. Trust our expertise and commitment to quality to meet your business needs

Introducing our high-quality steel products manufactured in China, designed to meet diverse industrial needs. Our material grade options include SPCC and MR, ensuring durability and performance. We offer various tempers such as T1, T2, T3, T4, T5, DR8, and DR9, catering to different requirements for flexibility and strength.

Our tin-coated materials have a coating weight ranging from 1.1 to 11.2g/㎡, ensuring excellent corrosion resistance. With thickness options from 0.15mm to 0.70mm and a tolerance of ±0.01mm, we guarantee precision specifications. The coil’s inside diameters are available in 420mm and 508mm, accommodating various processing equipment.

We provide coils weighing between 1 to 3 MT, making our products suitable for large-scale industrial use. Choice of surface finishes includes Bright, Stone, Silver, Matte, and Gold Lacquered, adding aesthetic value and versatility. As a reliable factory and supplier in China, we are committed to delivering exceptional products tailored to your business needs.

Our color coated steel coils, produced by QINGDAO SINCERELY STEEL, are manufactured using high-quality hot dip zinc coated (GI) steel or aluzinc/galvalume (AZ/GL) substrates. These premium materials undergo a thorough cleaning and pre-treatment process on our advanced continuous paint coating line (CCL), where we apply multiple layers of organic coatings for enhanced durability. As one of the leading China suppliers, we offer a comprehensive range of color options, making us your go-to factory for customized solutions in shades and gloss levels tailored to your specifications. Our Color Coated Prepainted Galvanized Steel Coils (PPGI) and Prepainted Aluzinc Steel Coils (PPGL) are available in various forms, including coils, sheets, slit strips, and profiled sheets. With an impressive annual coil coating capacity of 150,000 Metric Tonnes and thicknesses ranging from 0.1mm to 2.0mm, alongside widths from 650mm to 1350mm, QINGDAO SINCERELY STEEL is your trusted partner in quality and innovation.

QINGDAO SINCERELY Steel is a premier manufacturer and supplier of high-quality Prepainted Aluminium Coils in China. Our ultra-modern factory, located in the Shandong Industrial Park near Qingdao Port, is ISO 9001:2015 certified, ensuring that we meet the highest standards in the industry. As a leading supplier of prepainted aluminium coils, we proudly export our products to a wide range of countries, including Saudi Arabia, Kuwait, Oman, Bahrain, Jordan, as well as various African and European nations.

Our color-coated aluminium coils come in various types of surface coatings, including polyester (PE), fluorocarbon (PVDF), and epoxy coatings. Depending on the thickness of the coating, our products are categorized into options such as single-coated aluminium coils (4-20 microns), double-coated aluminium coils (25-28 microns), and triply-coated aluminium coils (35-38 microns).

Coated aluminium coils (PPAL) are versatile and widely used in roofing and cladding systems, ceiling applications, curtain wall plates, shutters, gutters, composite panels, cans, home appliance boards, and embossed aluminium coils.

What Is Zam?

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Zam, or Zn-Al-Mg alloy coated steel, is an advanced, highly corrosion-resistant steel sheet ideal for various applications, particularly in challenging environments. The coating primarily comprises zinc, with about 11% aluminum and 3% magnesium, along with trace amounts of silicon. This unique composition enhances the corrosion resistance significantly compared to traditional hot-dip galvanized steel sheets and hot-dip galvanized-55% aluminum alloy steel sheets. Zam offers reduced adhesion while maintaining equivalent corrosion resistance, making it a premier choice among suppliers and factories in China.

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Features Of Hot Dip Zn-Al-Mg Alloy Coated Steel

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· Extended service life compared to other coated products,

· Exceptional cut edge rust protection, a standout feature of Zam,

· Thinner yet more protective coating, promoting ecological sustainability,

· Outstanding performance in severe environments, including coastal and agricultural settings,

· Eliminates the necessity for post-dip (batch) galvanizing processes,

· Cost-effective solution through prolonged service life and lower maintenance requirements,

· Offers an ideal compromise between heavily coated galvanized products and higher-priced stainless steel, making it a valuable option for China-based suppliers and factories.

Discover the superior durability of stone coated metal roofing, a fusion of granite and steel that offers traditional shingle, shake, and tile aesthetics while providing exceptional weather resistance. Perfect for enhancing commercial property values, our roofing solutions are sourced from reputable suppliers in China and manufactured in our state-of-the-art factory. Experience the ideal blend of strength and style with our innovative roofing systems.

Aluzinc steel is a premium product consisting of a coating made up of 55% aluminum, 43.4% zinc, and 1.6% silicon. This advanced coating is applied through a continuous hot dip galvanizing process, ensuring superior corrosion resistance. The unique properties of Aluzinc come from its aluminum barrier effect on the surface, combined with the sacrificial protection offered by zinc. This results in a clean, bright silvery surface adorned with small spangles that create a lustrous appearance, changing dynamically with varying light conditions.

As one of the fastest-growing metallic coatings available today, Aluzinc combines the strength, formability, and recyclability of steel with the proven long-term anti-corrosion performance of the aluminum-zinc alloy coating. This advantageous combination leads to an economical product with outstanding eco-friendly features, including durability, recyclability, energy efficiency, and optimal resource utilization.

Our factory in China specializes in manufacturing Continuously Hot Dip Galvalume (GL) Coils that meet international standards. As reliable suppliers, we are committed to providing high-quality Aluzinc products that meet the diverse needs of our customers globally.

QINGDAO SINCERELY Steel is a premier manufacturer and supplier of high-quality Prepainted Aluminium Coils in China. Our ultra-modern factory, located in the Shandong Industrial Park near Qingdao Port, boasts an ISO 9001:2015 approved coil coating facility. As a leading supplier in the industry, QINGDAO SINCERELY STEEL specializes in providing top-notch Prepainted Aluminium Coils, proudly made in China and exported worldwide to countries such as Saudi Arabia, Kuwait, Oman, Bahrain, Jordan, and various nations across Africa and Europe.

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Our range of color-coated aluminum coils is categorized based on the surface coating type, including polyester (PE) coated, fluorocarbon (PVDF) coated, and epoxy coated aluminum coils. Additionally, we classify our coils by coating thickness, offering single-coated aluminum coils (4-20 microns), double-coated aluminum coils (25-28 microns), and triply-coated aluminum coils (35-38 microns).

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Coated aluminum coils (PPAL) from our factory are widely utilized in various applications, including roofing and cladding systems, ceiling systems, curtain wall plates, shutters, gutters, composite panels, cans, home appliance boards, and embossed aluminum coils. Trust QINGDAO SINCERELY Steel for your Prepainted Aluminium Coil needs, where quality meets innovation.