Duplex Composite Cardboard

Your Professional Duplex Composite Cardboard Supplier

Huizhou Songhong Industrial Co., Ltd. is the leading enterprise in Huizhou specializing in the research and development, processing, and sales of paper products. The company's primary product offerings include double gray cardboard (250g–2600g), coated white board (230g–2400g), white card (170g–1700g), double-sided white board (250g–2300g), double copper paper (90g–400g), double adhesive paper (60g–120g), and food wrapping paper (70g–350g). These products are widely utilized in the packaging of high-end goods such as cosmetic boxes, cigarette boxes, boutique boxes, mobile phone boxes, jewelry boxes, folders, and food packaging containers.

Advanced Equipment

The company is equipped with a double gray cardboard composite production line, a high-speed scuttling machine, and other state-of-the-art processing facilities.

Green Environmental Certification

Huizhou Songhong has successfully obtained FSC green environmental protection certification. It also markets its own branded product lines, including the Jinqiao wrapping paper series and the Senfeng blister paper series.

Adequate Inventory

The company maintains an annual supply capacity of 200,000 tons and holds a standing inventory of over 10,000 tons.

Customized Services

Recognizing that each client may have unique production requirements, we offer tailored solutions to meet specific customer needs.

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Parameter

Product Name	One-sided Black Layer Greybord	All-grey board	Double-side glossy greybord	One-sided white Layer Greybord
Weight	350G/m²-1800G/m²	350G/m²-1800G/m²	350G/m²-1800G/m²	350G/m²-1800G/m²
Thickness	0.3mm-3mm	0.3mm-3mm	0.3mm-3mm	0.3mm-3mm
Paper Type	Composite Grey cardboard	Composite Grey cardboard	Composite Grey cardboard	Composite Grey cardboard
Pulp Material	100% Recycling Paper Pulp Cardboard	100% Recycling Paper Pulp Cardboard	100% Recycling Paper Pulp Cardboard	100% Recycling Paper Pulp Cardboard
Coating Side	Single Side	End force sensors	Double Side	Single Side
Coating Material	PE	PE	PE	PE
Size	7871092mm; 8891194mm; (Customizable)	7871092mm; 8891194mm; (Customizable)	7871092mm; 8891194mm; (Customizable)	7871092mm; 8891194mm;(Customizable)
Color	Black	Grey	Grey	White
Compatible Printing	Offset printing	Offset printing	Offset printing	Offset printing

Advantages of Duplex Composite Cardboard

Strength and Durability

The layered construction of duplex composite cardboard imparts it with exceptional strength and durability, making it suitable for a wide range of applications, particularly those requiring robust packaging solutions. Its ability to withstand external forces contributes to its popularity in the manufacturing and transportation industries.

Printability

The coated surface of duplex composite cardboard plays a pivotal role in its widespread use. This coating ensures excellent printability, allowing for the creation of sharp, vivid graphics. As a result, businesses seeking eye-catching packaging and promotional materials find duplex composite cardboard to be an optimal choice for achieving high-quality printing outcomes.

Cost-Effectiveness

In an era where cost-effectiveness is paramount, duplex composite cardboard stands out as an economical choice for businesses. Its ability to deliver high-quality results at a reasonable cost makes it an attractive option, particularly for small and medium-sized enterprises looking to balance quality and budget considerations.

Applications of Duplex Composite Cardboard

Rigid Boxes & Cartons	High crush resistance and clean white printing surface.
Book Covers & Portfolios	Sturdy backing with smooth front for lamination or direct printing.
Point-of-Sale Displays	Economical bulk board with excellent structural integrity.
Tube Cores & Spools	Grey back delivers extra thickness and strength where needed.
Packaging Inserts & Dividers	Uncoated surface accepts adhesive; grey core provides cushion.

Storage Precautions for Duplex Composite Cardboard

Avoid direct sunlight
The composite cardboard has itself moisture, so it is not light-resistant. If it is placed in strong sunlight for a long time, the moisture inside the paper will be evaporated and lost, which will make the composite cardboard brittler, the color will also turn yellow. So when we use it, it will be easily broken, which will eventually affect the usage.

Pay attention to the temperature and humidity of the storage environment
Whether is too high temperature or too low humidity, will cause the composite cardboard undergo essential change, which will eventually lead to a decrease in its strength and toughness, then have a certain impact on later use.

Prevent external corrosion
We also need to pay attention to whether there is corrosion in the outside environment, including insects in the natural environment. Usually we use wooden pallets to transport composite cardboard,if we don't notice whether there are termites in the board, we will let it corrode the composite cardboard.

Customizable Options

Thickness Options

We offer a wide range of thicknesses from 0.8mm to 4mm, allowing you to choose the most suitable option based on the specific needs of your application.

Size Customization

In addition to standard sheet sizes such as 1000mm x 1200mm and 1200mm x 1500mm, our manufacturing capabilities enable us to provide custom - sized options to fit unique packaging designs.

Grammage Variations

The grammage of our Optimal Duplex Composite Cardboard varies from 300gsm to 600gsm, providing different levels of strength and stiffness to suit various product requirements.

Packaging and Shipping

Packaging

Carton with pallet

Shipping

Sample deliver: By international express like TNT, fedex, DHL, UPS.

Scale production shipping: By sea, by truck or by air.

Business Terms

Payment	T / T
Trade Term	EXW , FOB, CNF , CIF as per client's requirements
Lead Time	7 - 15 working days after order confirm
MOQ	1 ton for stock size, 5 tons for customized size

Our Factory

Huizhou Songhong Industrial Co., Ltd. was established in 2001, Covers an area of 29000 square meters, construction area of 29000 square meters.

FAQ

Q: Are you a manufacturer or a trading company?

A: We are a professional paper manufacturer with over 20 years of experience, integrating production, processing, and sales. Our factory is equipped with advanced machinery and a complete quality control system to ensure consistent product standards.

Q: What types of paper products do you export?

A: We export a wide range of paper products, including coated whiteboard paper, C1S/C2S duplex board, food-grade PE coated paper, ivory board, grey board, offset paper, copy paper, and laminated paperboard. Custom specifications are also available.

Q: Can you provide customized sizes, GSM, or packaging?

A: Yes. We support OEM and ODM services. You can customize the paper size, weight (GSM), surface treatment, and packaging according to your market needs. We also offer custom logo printing and palletized loading options.

Q: What is your minimum order quantity (MOQ)?

A: Our MOQ depends on the specific paper product. For standard items, the MOQ usually starts from 5–10 metric tons. For customized orders, the MOQ may be higher due to production setup requirements.

Q: What are your payment terms?

A: We typically accept T/T (Telegraphic Transfer) - 30% deposit, 70% balance before shipment. L/C at sight is also acceptable for large orders. Other payment terms can be negotiated based on the customer's credibility and order volume.

Q: How do you ensure the quality of your products?

A: We follow ISO-certified quality control systems, conduct 100% inspection during production, and provide samples for approval before bulk production. You're also welcome to arrange a third-party inspection before shipment.

Q: What are your lead times and delivery options?

A: The production lead time is usually 15–25 days after receiving the deposit and confirming all order details. We ship from major Chinese ports such as Shenzhen, Guangzhou, or Shanghai, depending on your location and preference.

Q: Can I request samples before placing an order?

A: Yes, we offer free samples (A4 or customized sizes), and the courier cost can be paid by the buyer or charged to your express account (e.g., DHL, FedEx, UPS). Sample preparation takes about 3–5 days.

We're professional duplex composite cardboard manufacturers and suppliers in China, specialized in providing high quality customized service. If you're going to wholesale cheap duplex composite cardboard, welcome to get quotation from our factory. For price consultation, contact us.

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