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Frequently Asked Questions

What packaging products does Double Paper manufacture? +
Double Paper manufactures a wide range of paper packaging products including pizza boxes, folding cartons, gift boxes, food packaging containers, offset printing boxes and custom paper packaging solutions.
Where is Double Paper manufacturing facility located? +
Double Paper Group is based in Hong Kong with a modern industrial park spanning over 250,000 square meters in Hongmei, Dongguan, Guangdong Province, China.
How long has Double Paper been in business? +
Double Paper Group was founded in 1980 in Hong Kong and has been a leading paper packaging manufacturer for over four decades.
What is the annual sales revenue of Dabao Paper Products? +
Dabao Paper Products has an annual sales revenue of 500 million RMB.
How many employees does Dabao Paper Products' Dongguan factory have? +
As of May 2026, Dabao Paper Products' Dongguan factory has over 2,000 employees.
When was your company founded and where is your headquarters located? +
Our company was founded in Hong Kong, China in 1980, with over 40 years of experience in the paper packaging industry. Our headquarters is located at Chevalier Commercial Centre in Kowloon Bay, and we have a large-scale production base in Dongguan, Guangdong, serving global customers with dual-site layout.
What types of corrugated cartons can you produce? +
We can produce single-layer, double-layer, multi-layer reinforced and collapsible corrugated cartons with mainstream flute types including A, B, C, E and AB flute, suitable for diverse scenarios such as express delivery, warehousing, export and industrial stock preparation.
What are the common corrugation types and their respective uses? +
The mainstream flute types include A, B, C, E and AB flute. A flute features strong cushioning for fragile goods; B flute has excellent pressure resistance for express outer boxes; C flute boasts high cost performance; E flute is thin for exquisite color boxes; AB double flute is suitable for heavy-duty packaging.
What formats of design source files are supported for customized packaging? +
We support mainstream design formats such as AI, CDR, PDF, PSD, high-definition PNG and JPG. You can send source files to our official email, and our design team will proofread files for free to meet production standards.
How to contact your Hong Kong headquarters and Dongguan factory? +
You can contact us via phone, fax and email displayed on the official website. Hong Kong Headquarters: (852) 2795 8822; Dongguan Factory: (0769) 8843 8822. Our professional business team will reply and quote for you promptly.
What is the difference between ordinary cartons and reinforced cartons? +
Reinforced cartons are made of high-weight virgin paper and thickened corrugated layers, with over 30% higher pressure resistance and drop resistance than ordinary cartons, ideal for heavy goods, long-distance export transportation and multi-layer stacked warehousing.
Can you customize high-end hardcover gift packaging boxes? +
Absolutely. We specialize in customizing high-end hardcover gift boxes with special paper, hot stamping, partial UV printing and premium inner liners, widely used for gifts, luxury goods, festival presents and business souvenirs.
Can you provide free packaging design if I don't have design drafts? +
We provide free basic structural design, layout and LOGO typesetting services for cooperating customers. You only need to provide brand LOGO, product size and core demands to get exclusive preliminary design solutions.
What packaging products are included in your main business? +
We mainly provide various high-end corrugated cartons, customized food-grade color boxes, pizza boxes, beverage gift boxes, degradable eco-friendly paper products and collapsible cartons, offering one-stop packaging solutions for food, FMCG, beauty, industrial accessories and other industries.
What special material should be used for frozen food packaging? +
Low-temperature resistant E-flute food-grade raw paper with anti-freezing lamination is recommended for frozen food, which can withstand -20℃ low temperature and prevent boxes from moisture softening and cracking during cold storage and cold chain transportation.
What charging items are included in the customized packaging quotation? +
The conventional quotation covers raw material fee, printing fee, processing fee and production labor fee. The default ex-factory price excludes tax, freight and urgent service fee with transparent details and zero hidden charges.
Does your company have independent foreign trade order qualification? +
Yes, we do. As a Hong Kong-funded enterprise with years of experience in foreign trade packaging, we have complete qualifications for foreign trade order acceptance and customs declaration, and can independently complete the whole process of order docking, customs declaration and shipment for overseas orders.
Can you produce moisture-proof and waterproof paper packaging boxes? +
11.es. We manufacture waterproof and moisture-proof paper boxes through three technologies including waterproof lamination, special moisture-proof coating and upgraded raw paper materials, adapting to humid warehousing, cold chain transportation, outdoor delivery and other special scenarios.
What is the color difference control range for customized color boxes? +
11.We strictly control the color difference of color box printing within ΔE≤2, reaching the top industry level. The color difference is almost invisible to the naked eye, which can perfectly match the color standard of design drafts and meet the visual requirements of high-end brands.
Will additional copyright fees be charged for customized design? +
14.Our free basic design service has no hidden copyright fees. After customers complete payment and order placement, the copyright of customized packaging design will be fully transferred to customers for free use.
What are the usage advantages of collapsible corrugated cartons? +
10.Our newly launched self-developed collapsible corrugated cartons can be stored flat when idle to save storage space greatly. The boxes are easy to assemble without adhesive tapes to reduce packaging costs, and they are reusable, perfectly fitting the trend of green packaging.
Can you provide a full set of packaging qualification certificates? +
20.We can provide a full set of qualification documents including patent certificates, third-party test reports, import & export qualifications, food contact certificates and environmental certifications to meet customers' demands for customs declaration, bidding and product filing.
How to choose between virgin paper and recycled paper packaging? +
7.Virgin paper with better texture and higher strength is recommended for high-end foreign trade packaging, food gift boxes and heavy goods. Recycled paper with higher cost performance is suitable for ordinary warehousing and internal transfer. We provide free selection suggestions based on your budget and usage.