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We are factory (our price will have an advantage over trading companies).
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Don't worry about the delivery date. We are sure to deliver the goods in time and quality to achieve customer satisfaction.
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We applied for and received 3 patents (Groove pipe, Shoulder pipe, Victaulic pipe).
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Port: The factory is just 40 kilometers from Xingang port, the biggest port in the north of China.
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Our manufacturing equipment includes 4 pre-galvanized product lines, 8 ERW steel pipe product lines, and 3 hot-dipped galvanized process lines.
Australian customer purchase powder coating pre galvanized steel square tube. After customers receives the goods for the first time, customer tests adhesive strength between the powder and the surface of the square tube. Customers test powder and square surface adhesion is small. We have meetings with customers to discuss this problem and we do tests all the time. We polished the surface of the square tube. Send the polished square tube to the heating furnace for heating. We tests all the time and discuss with customer all the time. We keep finding ways. After many tests, the final customer is very satisfied with the products. Now customer purchase a large number of products from factory every month.
The customer purchased steel pipes in our factory. After the goods were produced, the customer came to our factory for inspection.
Frequently Asked Questions (FAQ)
What are the main specifications of your hollow section square tubes?
Our square tubes are available in sizes ranging from 20mm*20mm to 400mm*400mm, with wall thicknesses from 0.7mm to 13mm. The length can be customized from 1 to 14 meters according to specific requirements.
What materials and standards do the square tubes conform to?
The manufacturing materials include Q195 to Q345, 10#, 45#, S235JR, GR.B-D, STK500, and BS1387. The products are manufactured to meet ASTM, DIN, JIS, and BS standards.
What zinc coating specifications do you offer for galvanized tubes?
We supply pre-galvanized square tubes with a coating weight of 40 to 220 G/M², as well as hot-dip galvanized square tubes with a coating weight of 220 to 350 G/M².
What certifications and quality assurance do you provide?
All products are certified with ISO, BV, CE, and SGS, ensuring top industrial quality and standard compliance. Customers are welcome to conduct on-site inspections at the factory.
What are the payment terms and standard delivery schedule?
The standard payment option is a 30% T/T deposit in advance, with the remaining 70% balance due upon B/L copy. We also accept 100% Irrevocable L/C at sight, or after receiving the B/L copy (20-30 days). Standard delivery is within 25 days of receiving the deposit.
What are your manufacturing capabilities and logistical advantages?
The factory has specialized lines including 4 pre-galvanized product lines, 8 ERW steel pipe product lines, and 3 hot-dipped galvanized process lines. Additionally, it holds 3 patents (Groove pipe, Shoulder pipe, and Victaulic pipe) and is situated just 40 kilometers from Xingang port for streamlined logistics.
Minjie Steel
