Powered by Made-in-China.com

Eco-Friendly Greenhouses for Efficient Plant Growth and Protection
US$20.00-50.00
1,000 Square Meters
Sample price:US$26.00/square meter.Request sample
Product profile
Customization
AvailableThickness
CustomShape
Venlo or Pointed GreenhousesMaterial
Polycarbonate BoardSection/Bay
4m/8mCovering Material
Polycarbonate SheetProduct Name
Polycarbonate GreenhouseThe Main Column
Galvanized Steel Square TubeDelivery
According to The Required DimensionsFrame
Hot-Dipped Galvanized SteelTotal Height
3.7-6.7mGutter Height
3-6mApplication
Vegetable Fruits FlowersFrame Material
Hot Galvanized Steel Frame StructureAdvantage
Super Strong ResistanceInstruction for Use
Installation DrawingSize
LargeType
Multi-Span Agricultural GreenhousesVentilation
Top and Side VentinationTransport Package
Required by CustomersSpecification
Type: Multi-Span Agricultural GreenhouseTrademark
SainpolyOrigin
Qingzhou, Shandong ProvinceHS Code
9406000090Production Capacity
3 Hectares Per MonthKey features
High Light Transmittance: PC-sheet covering provides over 80% light transmittance for efficient plant growth.
Durable Galvanized Frame: Hot-dipped galvanized steel skeleton ensures service life of more than 15 years.
Customizable Dimensions: Section/Bay and covering materials are customizable to meet specific project needs.
Advanced Ventilation: Equipped with side and roof ventilation systems actuated by gear motors for precise control.
Integrated Cooling System: Features cooling pads with exhaust fans for effective temperature, moisture, and air purification.
NFT Hydroponics Ready: Supports NFT hydroponic systems for water-saving, fertilizer-saving, and high-quality harvests.
Strong Wind Resistance: Stable structure designed to resist heavy rains and strong winds with high compression resistance.
Professional Installation Support: Provides planning drawings, manuals, and optional on-site engineer supervision for assembly.
Company profile
CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Designs CertifiedExport Year: 10 years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤2.34h
AI-Powered supplier vetting
SummaryWeifang Sainpoly Greenhouse Equipment Co., Ltd. is a limited company offering greenhouse products, with 29 employees and no stated parent group. It provides design customization, ODM, OEM for well-known brands, and has launched new products in the past year, supported by three R&D engineers. CE compliance is reported. The supplier has inventory capability and offers equipment installation, but lacks an overseas warehouse, overseas showroom, and a valid manufacturing-capacity contract with related subcontractors. Service documentation is weak: no written assessment or corrective-action procedures, and complaint handling has procedures but no written records. Financial information identifies reporting years but provides no substantive financial performance evidence. Customer evidence includes OEM work for well-known brands, while no Fortune 500 cooperation is reported and repeat-buyer preference is 10%–30%.
Supplier typeThe supplier is a limited company with no stated affiliation to a larger company group, offering greenhouse products. Its stated business scope also includes agricultural structures, landscaping, agricultural machinery maintenance, and related agricultural and plastic-product sales.
CertificationsCE certification is explicitly reported for the product, providing evidence of conformity with the stated applicable standards. No additional certifications are identified in the provided information.
After-Sales capabilityThe supplier offers equipment installation and has a complaint-handling procedure, but it has no overseas warehouse or showroom. Service governance is weak because assessment and corrective/preventive-action procedures lack written records, and complaint handling also lacks written records.
R&D capabilityThe supplier reports new products during the past year, provides ODM services, and employs three R&D engineers. However, it has no available SDK, so its innovation capability is evidenced for product development and design services but not for SDK-based integration.
Production capacityThe supplier has in-stock capability, reports one-month lead times in both peak and off-season periods, and identifies ten qualified service-capability suppliers. However, it has no valid manufacturing-capacity contract with related subcontractors, which creates a documented production-governance weakness.
Customization capabilityBoth R&D and general design-service information state customization from customer designs, and the supplier also reports ODM availability. This directly supports capability to develop or manufacture customized greenhouse products.
Client casesThe supplier reports OEM service for well-known brands, providing explicit customer-case evidence. It reports no cooperation with Fortune 500 companies, and repeat-buyer preference is stated at 10%–30%, so the customer track record is present but not broadly demonstrated.
Product Q&A
Q:Are you a trading company or a manufacturer?
A:
We are a factory. Our factory produces all items related to the greenhouse, so we provide the best price.
Q:Do you provide samples? Is it free or extra?
A:
Yes, we can provide samples free of charge, but we don't bear the freight.
Q:How to get a quotation for the greenhouse?
A:
Please let us know how many greenhouses are needed? What will be grown in the greenhouse? So that we can suggest related systems.
Q:How should I choose a greenhouse system?
A:
Please let us know where the greenhouse is (temperature, wind speed).
Q:How to assemble the greenhouse when purchasing?
A:
We have professional after-sales service engineers who will provide planning drawings and installation manuals. You can communicate with him from time to time. If necessary, we can also send engineers to your country to supervise the installation of the greenhouse. Please send a message for specific details.
Send Inquiry
*To:
WEIFANG SAINPOLY AGRICULTURAL TECHNOLOGY CO., LTD.
WEIFANG SAINPOLY AGRICULTURAL TECHNOLOGY CO., LTD.*Content:
Supplier replies will be sent to your registered email
You may also like
Spacious Galvanized Steel Greenhouse for Efficient Plant Growth
US$20.00-50.00
1,000 Square Meters(MOQ)
Durable Galvanized Steel Greenhouse for Efficient Plant Growth
US$20.00-50.00
1,000 Square Meters(MOQ)
Eco-Friendly Greenhouse with Superior Light Diffusion for Plants
US$45.00-70.00
1,000 Square Meters(MOQ)
2025 Eco-Friendly Hydroponic Greenhouse for Optimal Plant Growth
US$20.00-50.00
1,000 Square Meters(MOQ)
Premium Polycarbonate Multi-Span Venlo Greenhouse for Efficient Plant Growth
US$20.00-50.00
1,000 Square Meters(MOQ)
Innovative Greenhouse Designs for Organic and Eco-Friendly Cultivation
US$70.92-80.26
500 Square Meters(MOQ)
Innovative Greenhouse Design for Enhanced Plant Growth and Light
US$45.00-70.00
1,000 Square Meters(MOQ)
Smart Thermal Greenhouse for Enhanced Plant Health and Growth
US$45.00-70.00
1,000 Square Meters(MOQ)
Efficient Twin-Wall Greenhouse for Year-Round Planting and Growth
US$5.00-15.00
100 Square Meters(MOQ)
Premium Year-Round Greenhouse for Optimal Plant Growth and Care
US$45.00-70.00
1,000 Square Meters(MOQ)
Premium Venlo Greenhouse for Optimal Plant Growth and High Yield
US$70.92-80.26
500 Square Meters(MOQ)
Ultimate Versatile Venlo Greenhouse for Thriving Plant Growth
US$70.92-80.26
500 Square Meters(MOQ)
Water-Recycling Hydroponic Multi-Span Polycarbonate Greenhouse for Greens Eco-Friendly Water-Saving Cultivation Mode
US$12.88-32.88
10 Square Meters(MOQ)
Eco-Friendly Agricultural Greenhouse for Sustainable Sweet Pepper Cultivation
US$5.00-15.00
100 Square Meters(MOQ)
Eco-Friendly Greenhouse Structure for Sustainable Sweet Pepper Cultivation
US$5.00-15.00
100 Square Meters(MOQ)
Nsr Smart Agricultural Multi-Span 8mm Polycarbonate Hydroponic Greenhouse for Plant Growth
US$10.00-30.00
100 Square Meters(MOQ)
Premium Greenhouse Panels for Enhanced Plant Growth Solutions
US$10.00-30.00
100 Square Meters(MOQ)
Advanced Venlo Greenhouse for Optimal Plant Growth Solutions
US$70.92-80.26
500 Square Meters(MOQ)
Rainwater Reuse Irrigation Multi Span Polycarbonate Greenhouse for Leaf Vegetable Circular Eco-Friendly Water-Saving Planting
US$15.77-35.77
10 Square Meters(MOQ)
Premium Heavy-Duty Greenhouse Tunnel for Optimal Plant Growth
US$10.00-30.00
100 Square Meters(MOQ)



















