Q195 Q235 Square and Rectangular Steel Tube JIS ASTM Construction Use Wholesale

Q195 Q235 Square and Rectangular Steel Tube JIS ASTM Construction Use Wholesale. OEM Color Customization: Color can be customized to Black or Bright options. OEM Size Customization: Size is customizable via OEM services to meet specific requirements. 2-Year Warranty Coverage: Comprehensive 2-year warranty provided for all steel pipe products. ISO and ASTM Certified: Products certified with BV, ISO, SGS, and ASTM standards for quality assurance. Fast Delivery for Standard Items: Regular-size products can be delivered in as little as 3 business days. Free Sample Availability: Free 20 cm samples provided; customer only pays basic shipping cost. Large Production Capacity: Annual capacity of 450,000 tons for pre-galvanized and 200,000 tons for hot-dipped galvanized pipes. Professional Quality Control: Own testing center performs daily chemical, mechanical, and cosmetic inspections.