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Premium Black Square Steel Tube for Robust Mechanical Projects
US$650.00
1-24 Tons
US$600.00
25-98 Tons
US$550.00
99+ Tons
Sample price:US$20.00/piece.Request sample
Product profile
Customization
AvailableAfter-sales Service
Quality AssuranceWarranty
1 YearModel NO.
Square Steel PipeType
Non-AlloyTechnique
ERWMaterial
Carbon SteelSurface Treatment
Shot/Sand Blasting Surface Treatment, PicklingUsage
Build Construction Mechanical ManufactureSection Shape
SquareThickness
0.8mm-30mmAlloy
Non-AlloyProduct Name
Carbon Steel PipeTolerance
StandardDelivery Time
5 to 25 DaysLength
Customized LengthTransportation
Bulk Vessel, Container ShipmentSteel Grade
Gr.a/B/C/D, S195jr, S235jr, S275jr, S355jr, S355j0Process
Cutting Welding Bending PaintingTransport Package
Standard Export PackagingSpecification
15-1000mmTrademark
HuatuoOrigin
Tianjin, ChinaProduction Capacity
400, 000ton/YearKey features
Customizable Length: Offers customized length options to meet specific project requirements.
Wide Steel Grade Range: Supports multiple grades including Gr.A/B/C/D, S195jr, S235jr, S275jr, S355jr, S355j0, S355j2, S460jr, and S600jr.
Comprehensive Processing Services: Provides one-stop services including cutting, welding, bending, and painting.
Diverse Surface Treatments: Features shot/sand blasting, pickling, and anti-rust oil treatment for enhanced corrosion resistance.
High Production Capacity: Annual output of 400,000 tons ensures stable supply for bulk orders.
Flexible Delivery Time: Delivery time ranges from 5 to 25 days to suit various needs.
OEM Support Available: Offers OEM support for personalized project needs with flexible customization options.
1-Year Warranty Coverage: Includes a 1-year warranty for quality assurance on all products.
Company profile

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 5 years CertifiedNearest Port: Beilun portAverage Response Time: ≤18h
AI-Powered supplier vetting
SummaryThe supplier demonstrates established regional market experience, long-term cooperation with recognized local enterprises, and reported sales volume exceeding 380,000 tons in 2024. It offers broad customization, OEM, and ODM services, and has documented procedures for corrective actions and customer complaints. However, its service-capability assessment procedure lacks written procedures or records, and the approved-supplier list is incomplete. The supplier is not identified as a professional technical supplier, does not provide 3D software design or SDK services, and reported no new products in the past year. It lacks inventory, overseas warehouses, overseas showrooms, overseas agents or branches, and has not participated in offline trade shows. Sustainability-related evidence is also weak because no recent fire drills or factory environmental impact assessment report were reported. Certification information is not provided.
After-Sales capabilityThe supplier has clear procedures and followed records for corrective and preventive actions and customer complaint handling, supporting a documented service response capability. However, service-capability assessment lacks written procedures or records, and the supplier has no overseas warehouse, showroom, agent, or branch support.
R&D capabilityThe supplier does not have professional technical R&D capability, SDK availability, or 3D software design services, and reported no new products in the past year. ODM capability is available, but the evidence does not demonstrate recent product innovation.
Production capacityThe supplier reported total sales volume exceeding 380,000 tons in 2024 and has established cooperation with recognized local enterprises, indicating significant commercial supply activity. Nevertheless, it explicitly lacks in-stock capability and reported peak-season lead time of one month, while off-season lead-time data is unclear and inconsistent.
Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization. It also provides OEM and ODM services, directly supporting broad customization capability.
Client casesThe supplier cites long-term cooperation with Zhejiang Yasha Group and Southeast Steel Structure, as well as agents and end customers across Zhejiang Province. It also reports recognition from numerous enterprises and customers, providing concrete regional customer references.
Product Q&A
Q:What are the acceptance criteria for hot-dip galvanized steel pipes?
A:
During project acceptance, hot-dip galvanized steel pipes can be judged qualified by checking their appearance. Specifically, inspect the entire surface for defects such as missing plating or bubbles. Only when these issues are promptly addressed can the product be deemed qualified, ensuring its reliable application in subsequent projects.
Send Inquiry
*To:
Zhejiang Yingjia Steel Co., Ltd.
Zhejiang Yingjia Steel Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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