01Applied and received 3 exclusive patents: Groove pipe, Shoulder pipe, and Victaulic pipe.
02Strategic Location: The factory is located just 40 kilometers from Xingang Port, the largest port in Northern China, facilitating rapid global shipping.
03Advanced Production Equipment: Equipped with 4 pre-galvanized product lines, 8 ERW steel pipe lines, and 3 hot-dipped galvanized processing lines.
Packing & Shipment
Customer Case Study
An Australian customer purchased powder coated pre-galvanized steel square tubes. Upon initial receipt, they tested the adhesion strength between the powder coating and the steel surface, discovering that the adhesion was insufficient.
We immediately conducted collaborative technical meetings and continuous testing to resolve this issue. By polishing the surface of the square tubes and utilizing a specialized heating furnace treatment before powder application, we successfully optimized the process. Following rigorous re-testing, the customer was completely satisfied with the improved quality. Today, they place large volume orders on a monthly basis.
Customer Visit & Inspection
The customer purchased steel pipes directly from our production line. Once the manufacturing phase was complete, they visited our production site in person to run detailed quality checks and complete the pre-shipment inspection.
Frequently Asked Questions (FAQ)
Q
What standard and grade do your Hot Dip Galvanized Steel Pipes comply with?
Our pipes strictly adhere to global standards, including JIS G3302, EN10142/10143, and GB/T2618-1988, under the DX51D SGCC grade, ensuring structural reliability.
Q
What range of zinc coating thickness do you offer?
We offer a flexible range of zinc coatings from Z80 to Z275 to fulfill different corrosion resistance and environment requirements.
Q
What dimensions and thicknesses are available for purchase?
We produce pipe wall thicknesses ranging from 0.5mm to 4.5mm. Standard widths include 1000mm, 1250mm, and 1500mm, with customizable length options (C).
Q
What patented technology is used in your steel pipes?
We have applied for and successfully obtained three distinct patents to optimize pipe connection stability: Groove pipe, Shoulder pipe, and Victaulic pipe designs.
Q
How do you handle surface prep issues for custom powder coatings?
If adhesion issues occur, we resolve them immediately by polishing the steel square tube surface and running them through a high-temperature heating furnace prior to powder coating to optimize adhesion.
Q
How convenient is shipping and transport from your facility?
Our manufacturing facility is located only 40 kilometers from Xingang Port (the largest port in Northern China), ensuring streamlined transportation and reduced logistical transit time.
Minjie Steel
