Does the product have quality inspection before loading?

Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed.

How to pack the products?

The inner layer has a waterproof paper outer layer with iron packaging and is fixed with a fumigation wooden pallet. It caneffectively protect products from corrosion during ocean transportation.

Cold Rolled Stkm11A Precision Steel Tube

Name: Cold Rolled Stkm11A Precision Steel Tube
Brand: Shandong Tongmao Special Steel Co., Ltd.
SKU: 1934555262

Shandong, ChinaShandong Tongmao Special Steel Co., Ltd.

US$800.00-1,500.00

3 Tons

Product profile

Customization

Available

Type

Seamless

Technique

Cold Drawn

Model NO.

Stkm11A

Material

Carbon Steel

Surface Treatment

Oiled

Usage

Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose

Section Shape

Round

Od

8-120mm

Wt

0.8-20mm

Length

3-12m

Tolerance

More or Less 0.1mm

Transport Package

Standard Export Packing

Specification

10mm

Trademark

tongmao

Origin

China

HS Code

7304193000

Production Capacity

200ton/Month

Key features

High Precision & No Leakage: Seamless structure with no oxide layer, ensuring no leakage under high pressure and high finish.

Customizable Dimensions: Outer Diameter 8-120mm, Wall Thickness 0.8-20mm, Length 3-12m with customizable tolerance.

Wide Material Selection: Available in Carbon Steel grades including 10#, 20#, 45#, Q345, 16Mn, and various ASTM/DIN standards.

Versatile Application: Suitable for hydraulic/pneumatic components, boiler pipes, oil/gas drilling, and machinery industry.

Fast Delivery Cycle: Complete delivery within 7-15 days after payment, supported by multiple automatic production lines.

Strict Quality Inspection: All products undergo strict quality testing before packaging; unqualified items are destroyed.

Multiple Certification: Products certified with ISO 9001, SGS, EWC, CE, and RoHS for global market compliance.

Flexible Payment Terms: Supports L/C, T/T, Western Union, and MoneyGram to accommodate diverse customer needs.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceManagement Certification

Shandong Tongmao Special Steel Co., Ltd.

Shandong, China

Business 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: ≤5.51h

AI-Powered supplier vetting

SummaryThe supplier is a limited-company trading company with eight employees and a product scope covering copper, aluminum, steel, brass, and stainless-steel products. It has self-operated import/export rights, eight years of export experience, and exports account for 71%–90% of total sales. Production information states annual capacity of 500,000 tons for steel pipe and 10,000 tons for copper pipe, with peak- and off-season lead times both within 15 working days. However, the supplier reports no overseas showrooms, agents, branches, or offline trade-show participation, and has no written complaint-handling, corrective-action, or supplier-service assessment procedures. Quality controls include quality assurance, but finished products are randomly inspected and checked by packing staff, with one quality inspector and no raw-material traceability. Innovation and formal R&D capabilities are limited: no new products were launched in the previous year, and no 3D design, ODM, SDK, or popular-brand OEM services are...

After-Sales capabilityThe supplier has no overseas showroom, overseas agent or branch, or offline trade-show participation. It also has no written corrective-and-preventive-action procedures, complaint-handling procedures, or effective supplier-service assessment records, although it accepts multiple quotation and payment terms and reports lead times within 15 working days.

R&D capabilityThe supplier reports no new products in the previous year and does not provide 3D software design, ODM, SDK, or popular-brand OEM services. Its stated R&D-related service is customization from samples, indicating limited innovation capability rather than a documented product-development program.

Production capacityThe supplier provides stated annual productivity of 500,000 tons for steel pipe and 10,000 tons for copper pipe, with peak- and off-season lead times both within 15 working days. It has export experience of eight years, self-operated import/export rights, and export sales of 71%–90%; however, quality inspection is limited to random inspection, packing-staff checks, one inspector, and no raw-material traceability.

Customization capabilityCustomization from samples is explicitly available in both the R&D/design-related and product-capability information. No broader 3D, ODM, SDK, or formal product-development capability is stated, so the confirmed capability is sample-based customization.