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SINHAI: A Leading Polycarbonate Sheet Manufacturer in China

SINHAI: A Leading Polycarbonate Sheet Manufacturer in China

SINHAI stands out as one of the largest and leading Polycarbonate Sheet Manufacturers in China. It has implemented a strict quality control system and an excellent raw material choice mechanism. The company holds certifications like ISO 9001 - 2015, CE, ROHS, and SGS, and even has its self - patent Bamboo Polycarbonate Sheet. With 3 plants, SINHAI is dedicated to providing a one - stop solution for the safe daylighting industry and glazing systems. It continuously innovates and moves forward. The main product range includes Hollow Polycarbonate Sheet, Crystal hollow PC Sheet, Solid polycarbonate Sheet, Embossed PC Sheet, Corrugated PC Sheet, and PC H/U Type Accessories. An additional plant located in Kashgar, Xinjiang, an important hub along the Belt and Road, brings added value and good services to customers due to its unique location. SINHAI offers fast delivery, a durable service life for PC sheets, reasonable prices, energy - saving features, and cost - effectiveness. It has served
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Why choose us?

Strong Quality Assurance with Multiple Certifications

SINHAI ensures strict quality control using premium raw materials like SABIC material with Lotte UV resins. The company holds certifications such as ISO 9001-2015, CE, RoHS, and SGS, guaranteeing product compliance with international standards. Its self-patented Bamboo Polycarbonate Sheet showcases innovative design and durability, meeting diverse project requirements for safety and reliability.

Comprehensive Product Range and Customization Capability

Offering a wide array of products including Hollow, Crystal Hollow, Solid, Embossed, and Corrugated PC Sheets, along with PC H/U Type Accessories, SINHAI caters to various needs. With 60+ free moulds, the company supports OEM/ODM services, enabling customized solutions for different thicknesses, colors, and specifications, such as the hot-selling 8mm/10mm Bamboo PC sheets and diamond embossed corrugated sheets.

Strategic Location for Efficient Delivery and Cost Savings

Situated in Kashgar, a key Belt and Road hub, SINHAI's additional plant ensures fast delivery to Middle Asia and beyond, significantly reducing freight costs and time. This strategic location enhances supply chain efficiency, allowing the company to offer competitive pricing while maintaining quick turnaround for orders, ideal for large-scale projects worldwide.

Extensive Experience and Global Market Reach

With over 30 years of industry experience and 3 production plants, SINHAI has a proven track record in delivering one-stop daylighting and glazing solutions. Serving over 180 countries/regions, the company excels in agricultural, industrial, and commercial projects (e.g., greenhouses, roofing, sound barriers). Its technical expertise and global presence ensure reliable, innovative, and energy-saving solutions for diverse applications.

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Sinhai’s DIY polycarbonate greenhouse kits empower growers with easy-to-install, cost-effective solutions. Each kit includes pre-cut 4–6mm twinwall PC sheets, galvanized steel frames, and all necessary hardware (screws, clips, seals). The panels offer 75–80% light transmittance and UV protection, creating an optimal environment for plant growth. Step-by-step manuals and online support guide assembly, requiring no professional expertise. Optional upgrades include vent kits, automatic openers, and anti-fogging coatings. Available in compact (2x3m) and medium (4x5m) sizes, kits are ideal for backyard gardens, hobby farms, or educational projects. Contact us to purchase a standard kit or request a custom material list for personalized greenhouse designs.

Frequently Asked Questions

Do you take special orders?

Yes , We accept customized products.
We have a factory ourselves, we are on this business for 30+ years in China
For normal polycarbonate sheet orders, we can deliver within 7 days. For orders that require cut-to-size services and thermoforming, delivery time will be extended
The fastest delivery speed.Free samples are provided for testing.We have a professional greenhouse construction team.ISO 9001:2008 CE certification quality.There are Ten polycarbonate sheet production lines.
Usually we accept T/T (30% deposit and balance against B/L copy), L/C. Other payment terms can be negotiable.

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customer evaluation

Lisa Moore
Cost-Effective Greenhouses for Small-Scale Growers

"A community garden in Toronto opted for Sinhai’s polycarbonate greenhouse panels for their affordability and ease of use. The lightweight sheets made it easy for volunteers to assemble the structure, and the transparent finish provides ample light for year-round gardening. The 10-year warranty gives us confidence in their longevity, even through harsh Canadian winters."

Emma Green
Sustainable Greenhouse Materials for Eco-Friendly Projects

"An organic farm in California uses Sinhai’s recycled polycarbonate panels for its greenhouses. The material’s sustainability aligns with our eco-goals, and the thermal insulation reduces our carbon footprint. The panels’ resistance to pests and diseases has minimized chemical use, while the clear finish supports natural plant growth. A responsible and effective solution."

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Ideal Polycarbonate Greenhouse Solutions

Ideal Polycarbonate Greenhouse Solutions

Sinhai's polycarbonate greenhouse sheets (hollow or multiwall) offer 85% light transmittance and excellent thermal insulation, promoting plant growth. Made with UV-blocking PC material, they resist yellowing and impact, with thicknesses of 8mm-10mm for durability. The sheets are easy to install, energy-efficient, and compatible with greenhouse structures, reducing heating costs by up to 25%. Backed by a 10-year warranty and global delivery, they meet GB/T 44570-2024 standards, ensuring reliability for agricultural and horticultural projects.

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