About Dongguan Youngsun Paper Co.Ltd - Grey Board Supplier in China

Dongguan Youngsun Paper Co.Ltd is based in China and currently lists seven distinct paper board products in its catalogue. The catalogue includes items such as Paper grey 4 mm, Paper grey 3 mm, Black paper board, Black paper, Grey paper, Plain grey mill grey board, and a size‑specific 787 × 1092 mm grey board. Each entry falls under the broader categories of Grey Board, Paper Boards and Mill Paper Board, which are typical classifications for coated or uncoated stiff paper substrates used in packaging and printing applications.

The supplier’s product set reflects common thicknesses ranging from 3 mm to 4 mm and includes both plain and black‑coloured variants. The size‑specific board (787 × 1092 mm) indicates that custom sheet dimensions are offered, a practice often required for bulk packaging or printed board production. No additional product families or HS codes are listed, limiting the catalogue to these seven grey‑board related items.

Product Range and Specialties of Dongguan Youngsun Paper Co.Ltd

The listed products cover standard grey board formats used for folding cartons, book covers and protective packaging. In the industry, grey board is typically produced with a basis weight between 250 g/m² and 350 g/m² and a moisture content of 4‑6 %. Thicknesses of 3 mm to 4 mm correspond to a density of roughly 0.8 g/cm³, meeting ISO 536 specifications for paper thickness measurement. Black paper board variants are often employed for high‑contrast printing or as a backing layer, and they are usually coated to achieve a surface gloss of 30‑40 % as measured by ISO 2859.

Typical grades for mill paper board include uncoated, free‑sheet grades that meet ISO 536 and ISO 536‑2 for smoothness. Buyers frequently request test reports for tensile strength (often 5‑7 MPa), tear resistance (20‑30 N), and burst strength (1.5‑2.0 kPa). The size‑specific board suggests the ability to cut to custom dimensions, which aligns with standard bulk packaging requirements where sheets are shipped in 20‑ft or 40‑ft containers, stacked on pallets with protective film.

Trade and Export Information - Dongguan Youngsun Paper Co.Ltd

China is a leading exporter of paper boards, with grey board shipments primarily destined for East Asia, Europe and North America. The HS chapter 48 family (e.g., 4805 for paperboard) is commonly used for customs clearance of these products, and importers generally verify that the goods comply with the destination country’s phytosanitary and fire‑safety regulations. Buyers often request certificates such as ISO 9001 for quality management and FSC or PEFC chain‑of‑custody documentation to confirm sustainable sourcing, although these are not listed as held by the supplier.

Typical export packaging for grey board involves double‑wall cardboard cartons, shrink‑wrapped pallets, and moisture‑resistant liners to preserve the 4‑6 % moisture level during transit. Freight is usually arranged under FOB or CIF terms, with container loads ranging from 10 metric tonnes in a 20‑ft container to 15 metric tonnes in a 40‑ft container, depending on board density and packaging. Inspection agencies such as SGS or Bureau Veritas are frequently engaged to perform pre‑shipment sampling and compliance checks against the relevant HS codes and safety standards.

Sourcing from Dongguan Youngsun Paper Co.Ltd - Buyer Guidance

When sourcing from Dongguan Youngsun Paper Co.Ltd, buyers should request material data sheets that specify basis weight, thickness, moisture content and surface finish. Sample boards should be inspected for uniform colour, surface smoothness (ISO 2859) and dimensional accuracy, especially for the custom‑size 787 × 1092 mm board. Buyers are advised to obtain third‑party test reports for tensile, tear and burst strength to verify that the boards meet the typical performance range for packaging applications.

In addition to product specifications, buyers should confirm whether the supplier can provide standard certifications such as ISO 9001, FSC or PEFC, as these are commonly required by downstream manufacturers in Europe and North America. Verification of the HS code used for customs (normally 4805) and confirmation of packaging details - e.g., pallet size, wrapping material and container type - will help avoid delays at import inspection points.

What types of grey board does Dongguan Youngsun Paper Co.Ltd offer?

The catalogue lists seven items, including 3 mm and 4 mm thick plain grey boards, black‑coloured paper board, and a custom‑size 787 × 1092 mm grey board.

Are thickness and basis weight provided for the listed boards?

Thickness is indicated (3 mm, 4 mm) in the product names; typical basis weights for similar grey boards range from 250 g/m² to 350 g/m², but buyers should request the exact figures from the supplier.

Which HS code is normally applied to these paper boards?

Paper boards from China are generally classified under HS chapter 48, most often HS code 4805 for paperboard, but the exact code should be confirmed with the supplier for each product.

What certifications are commonly required for grey board imports?

Importers usually ask for ISO 9001 quality‑management certification and sustainable‑forest certifications such as FSC or PEFC; buyers should verify whether Dongguan Youngsun holds or can obtain these documents.

How are the boards packaged for shipment?

Standard practice is to stack the boards on pallets, protect them with moisture‑resistant film or shrink wrap, and load them into 20‑ft or 40‑ft containers; exact packaging details should be confirmed before order finalisation.

What are typical minimum order quantities and lead times?

Grey board orders often start at one container load (approximately 10‑15 metric tonnes) with lead times of 3‑6 weeks from order confirmation, depending on production scheduling and shipping arrangements.

What quality tests should a buyer request?

Buyers should request test reports for thickness (ISO 536), moisture content (4‑6 %), tensile strength (5‑7 MPa), tear resistance (20‑30 N) and burst strength (1.5‑2.0 kPa) to ensure compliance with industry standards.

Can the supplier provide custom dimensions beyond the listed size?

The presence of a specific 787 × 1092 mm board suggests the ability to cut to custom dimensions; buyers should ask the supplier about size‑flexibility and any associated tooling or setup charges.