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.

Premium 4 Inch Round Hot-DIP Gi Scaffold Hollow Pipe

Name: Premium 4 Inch Round Hot-DIP Gi Scaffold Hollow Pipe
Brand: Shandong Tongmao Special Steel Co., Ltd.
SKU: 2107063955

Shandong, ChinaShandong Tongmao Special Steel Co., Ltd.

US$600.00-1,000.00

5 Tons

Product profile

Customization

Available

Type

Seamless or Welded

Technique

Hot Roll or ERW or Cold Roll

Model NO.

ASTM A500/A501, GB, JIS, BV, PHD, EPD, BC1

Material

Carbon Steel

Surface Treatment

Galvanized

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

10-610mm

Wt

0..8-60mm

Length

5.8-12m

Standard

BS1387 GB/T ASTM A53/106

Transport Package

Standard Export Packing

Specification

hot dip galvanized

Trademark

tongmao

Origin

China

HS Code

7306690000

Production Capacity

500ton/Month

Key features

Hot-Dip Galvanized Coating: Zinc coating ranging from Z200 to Z520 g/m2 for superior corrosion resistance.

Wide Size Range: Outer diameter 15mm-168mm, wall thickness 0.5-2.75mm, length 5.8-12m.

Versatile Applications: Suitable for construction, oil/gas drilling, chemical industry, and machinery.

Comprehensive Testing: Includes hydraulic testing, eddy current, and infrared tests with Class A pressure.

OEM and ODM Services: Full customization available from designs with professional engineering support.

Fast Delivery Time: Standard delivery within 7-15 days, with peak season lead time under 15 workdays.

Secure Packaging: Waterproof paper, iron packaging, and fumigation wooden pallets for ocean transport.

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: ≤5.02h

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.