About Us
Welcome to Onshin | 20 Years of Excellence in Packaging
With over 20 years of expertise in the plastic manufacturing industry, Onshin stands at the forefront of the PP/PE corrugated sheet sector. From our expansive 15,000-square-meter facility, we provide high-performance, sustainable, and customizable packaging solutions to clients across Europe, the Americas, and the global market.
At the heart of our operations are 16 state-of-the-art, fully automated extrusion lines. By leveraging unique screw designs, adjustable flow blocks, and precision temperature control systems, we guarantee consistent plasticization and superior extrusion quality. This robust infrastructure allows us to maintain an annual production capacity of over 10,000 tons, ensuring we meet the demands of large-scale international projects with efficiency and reliability.
Precision Fabrication & Quality Assurance
We believe that quality is built into every detail. Our facility is equipped with:
High-Precision Processing: Featuring 11 advanced die-cutting units, including horizontal flatbed machines with intelligent photoelectric sensors to ensure precise dimensional accuracy.
Comprehensive Finishing: Our end-to-end production capabilities include ultrasonic welding, automatic box-stitching, thermal bonding, high-speed printing, edge sealing, and full-scale automated packaging.
Strict Quality Control: From raw material testing to final compression strength analysis for boards and boxes, we maintain rigorous standards to ensure every product meets the most demanding industrial requirements.
Onshin has successfully secured over 20 international certifications, including:
Management Systems: ISO9001:2015, ISO14001, and OHSAS18001.
Compliance & Safety: SGS Food-Grade Certification, FDA US Standards, and TUV factory entity certification.
Versatile Product Solutions
Onshin offers a diverse portfolio of products designed to replace traditional timber, paper, and metal packaging:
Industrial Boards: Thicknesses ranging from 1.2mm to 13mm, widths up to 2500mm, with specialized functional options such as anti-static, conductive, flame-retardant, and UV-resistant treatments.
Packaging Systems: Customized turnover boxes, fruit & vegetable crates, and seafood freezer boxes that are moisture-proof, washable, and foldable to optimize supply chain efficiency.
Specialized Applications:
Cold Storage Boards: Durable and low-temperature resistant for extended food storage.
Glass Bottle Layer Pads: High-compression strength with precision edge-sealing for safe, damage-free transport.
High-End Advertising Media: Corona-treated (50+ dyne) for professional-grade printing performance in exhibitions and marketing.
Our Core Services
With a 15,000-square-meter workshop and an annual production capacity of 10,000 tons, we are fully equipped to handle projects of any scale with precision and efficiency
Factory-Direct Manufacturing
Leveraging 20 years of production expertise, we provide high-quality corrugated plastic solutions directly from our 15,000-square-meter workshop
Tailored Packaging Design
We specialize in custom plastic packaging solutions designed to meet your unique product and logistics requirements.
Precision CAD & Sample Integration
We bring your designs to life by manufacturing based on the exact CAD drawings or physical samples provided by your team.
Technical Problem-Solving
We serve as your dedicated industrial partner, actively helping you troubleshoot and resolve packaging challenges within your supply chain.
Large-Scale Production Capacity
With an annual output of 10,000 tons, our facility is fully equipped to handle both high-volume orders and customized small-batch projects with efficiency.
International Quality Compliance
Our commitment to excellence is backed by global standards, including SGS, REACH, and RoHS certifications, ensuring reliability for your international market needs.
Redefining Industrial Packaging
with Sustainable and Recyclable Solutions
Our Journey of Excellence

Engineered with a robust honeycomb structure, our sheets deliver outstanding impact resistance and load-bearing capacity, ensuring reliable protection for your goods even under heavy-duty conditions.

Designed to perform in demanding environments, our material is inherently moisture-proof, chemical-resistant, and weatherproof, maintaining its structural integrity where traditional paper packaging fails.。

Built for longevity, our high-performance sheets are engineered to withstand multiple shipping cycles, significantly reducing your long-term operational costs compared to single-use alternatives.

Committed to a circular economy, our PP materials are fully recyclable and non-toxic, providing a sustainable solution that helps your business meet global green packaging standards.
Testimonial
Why Customers Think
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A True Partner in Sustainability
"Finding a partner that balances high-performance packaging with genuine eco-friendly standards is rare. Onshin delivered exactly what we needed: high-quality, recyclable materials that hold up flawlessly. Their commitment to quality certifications and efficient logistics has made them our top choice for packaging solutions." — Supply Chain Manager, Logistics & Distribution (United States)
Reliable Quality and Exceptional Service
"We have been sourcing PP corrugated sheets from Onshin for over two years. Their products are consistently durable and perform perfectly under heavy-duty conditions. What truly sets them apart is their professional team—they are always responsive and provide excellent technical support, making our supply chain operations much smoother." — Director of Procurement, Manufacturing Firm (Germany)
Outstanding Customization and Precision
"We required specific dimensions and heavy-duty specs for our industrial packaging project, and Onshin exceeded our expectations. Their ability to deliver custom solutions with such precision—while maintaining short lead times—has been a game-changer for our assembly line. They truly understand the needs of professional manufacturers." — Operations Manager, Automotive Component Supplier (South America)
A Stable and Trusted Long-term Partner
"In the fast-paced world of international trade, consistency is key. We have worked with Onshin for several large-scale shipments, and the quality has been impeccable every time. Their deep knowledge of international standards and proactive communication makes them a reliable partner we can always count on for our sustainable packaging needs." — Head of Sourcing, Industrial Distribution Group (France)
Frequently Asked Questions
Leveraging two decades of production expertise, Onshin offers proven solutions to the challenges that matter most to our clients. Below are the key factors our partners consider to ensure successful cooperation.
Coroplast, commonly known as corrugated plastic, is a twin-wall plastic sheet made from high-quality Polypropylene (PP) copolymer. It is lightweight, durable, and highly resistant to moisture, chemicals, and impact.
Yes, our sheets are excellent for outdoor applications. They are UV-stabilized, 100% waterproof, and do not corrode, rot, or swell like cardboard or wood when exposed to rain or humidity.
We offer a wide range of thicknesses, typically ranging from 2mm to 12mm, to suit different requirements—from lightweight advertising signs to heavy-duty industrial layer pads and structural liners.
Yes, ONSHIN PP corrugated sheets are 100% recyclable. We are committed to circular economy standards and can provide documentation to support your business’s sustainability goals.
Yes, we maintain international quality standards. We can provide SGS, REACH, and RoHS compliance certificates upon request to ensure our products meet your local market’s regulatory requirements.
Absolutely. Our PP sheets are widely used as internal skeletons for travel kits, tool bags, and industrial totes. They provide structural rigidity, prevent sagging, and protect the bag from punctures.
We can produce sheets that meet specific food-safety requirements. Please contact our sales team to discuss your specific application, such as food-contact packaging or bakery layer pads.
Yes, we provide full customization. We can precision-cut sheets to your exact dimensions, add rounded corners, seal the edges, or die-cut specific shapes for your packaging needs.
Unlike cardboard, our PP Layer Pads are reusable, washable, and moisture-proof. They last for hundreds of cycles, significantly lowering your long-term packaging costs and improving hygiene standards.
Our MOQ depends on the thickness and level of customization required. Please contact our team via the “Request a Quote” form, and we will provide a solution tailored to your production volume.