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Zhejiang Wenchen Packaging Technology Co., Ltd.

About Us

Zhejiang Wenchen Packaging Technology Co., Ltd. was established on December 24, 2004. As Cardboard Express Delivery Shipping Boxes Manufacturers in China, Corrugated Express Delivery Shipping Boxes Compnay, the company integrates R&D, manufacturing, export and domestic sales. It mainly deals in color boxes, corrugated boxes, corrugated cardboard, industrial cartons, Taobao Tmall and various e-commerce platforms postal express cartons, various specifications of customized printing and other carton products. With 15 years of carton production capacity, the company has rich product experience. The production of cardboard and carton is completed by the company, which guarantees the quality of the product from the source, focuses on automation and large-scale production, and responds quickly to customer requirements; vertical integration can bring better costs to customers.


The company covers an area of ​​61,111 square meters, with a plant area of ​​35,000 square meters, an annual output of 150 million square meters of cardboard, and a monthly output of 80 million cartons. Offer Custom Printed Corrugated Express Delivery Shipping Boxes. In 2018, the company's annual output value was 260 million yuan.


At present, the company's annual production capacity of paper containers is 300 million square meters, with a fully automatic 2500 door width high-speed cardboard production line, a fully automatic 5-color carton linkage production line, a fully automatic digital printer, 8 three-color printing machines, 2 fully automatic four-color printing machines, 3 1500 die-cutting machines, 1 1450 fully automatic die-cutting machine and other production equipment. As Custom Cardboard Express Delivery Shipping Boxes Compnay, the total investment is about 200 million, and the annual sales are about 500 million.


The company has a sound organizational structure and adheres to the principle of "people-oriented, integrity first, customer first, quality first". Friends from all walks of life are welcome to visit, guide and discuss business.

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Corrugated Express Delivery Shipping Boxes

Express Parcels Get Handled More Roughly Than Freight Cartons

A box moving through an express courier network typically passes through several sorting hubs, conveyor belts, and manual handoffs in a single day — far more touchpoints than a palletized freight shipment sees. Each handoff is a chance for a drop, a slide off a chute, or a stack shift, which is why express-network cartons are usually specified for impact and puncture resistance first, ahead of pure stacking strength.

Fitting Carrier Size and Weight Brackets on Purpose

Most express carriers price parcels in size and weight brackets, and a box that's a few centimeters over a threshold — or one that leaves several centimeters of unused space — can push a shipment into a more expensive tier for no functional reason. Checking the actual bracket cutoffs for your primary carrier before finalizing box dimensions is a simple step that's easy to skip and can meaningfully affect per-parcel cost across a full order volume.

Reserving Panel Space for Labels and Barcodes

Express parcels carry a shipping label, and often a barcode that needs a clean, flat, unobstructed scan area for automated sorting equipment to read reliably. A busy printed design or a seam running through that zone can slow down or fail an automated scan, which then routes the parcel to manual handling and adds delay. Reserving a dedicated flat panel for labeling — separate from the brand graphics — keeps scanning fast and avoids that bottleneck.

Closures Built for Speed at the Packing Bench

Closure options compared for high-volume express packing
Closure Type Packing Speed Tamper Visibility
Self-Locking Base (RSC) Fast, no tape needed on the bottom Low — relies on top seal
Taped Full Seal Moderate High — visible if tape is disturbed
Adhesive Strip Tuck Fast, one motion to seal Moderate

For high-volume fulfillment, the base closure usually matters more than people expect — a self-locking bottom removes one taping step per parcel, which adds up quickly across thousands of daily shipments.

Building in a Buffer for Multi-Carrier Networks

Sellers using more than one express carrier often find that a box optimized tightly for one carrier's bracket doesn't line up as neatly with another's. Leaving a small dimensional buffer rather than sizing to the exact edge of one carrier's cutoff keeps the same box usable across multiple networks, which avoids having to stock separate box sizes per carrier. We can help size cartons against more than one carrier's bracket at once if you're shipping through multiple express networks.