Factory Wholesale Ss400 Carbon Steel Square Hollow Section 100X100 150X150mm 6m for Building Frame

Factory Wholesale Ss400 Carbon Steel Square Hollow Section 100X100 150X150mm 6m for Building Frame. Customized Section Sizes: Offers tailored square, rectangular, and round dimensions to meet specific engineering requirements. Wide Material Grade Range: Supports ASTM, EN, DIN, JIS, and GB standards including Q235B, Q355b, and A500. Flexible MOQ Options: Minimum order quantity starts at 1 ton with flexible customization for large inventory items. Comprehensive Processing Services: Includes cutting, punching, welding, and bending to deliver ready-to-use components. Third-Party Inspection Support: Fully supports SGS, BV, TUV, and ISO inspections with Mill Test Certificates (MTC). Diverse Surface Treatments: Available options include black painting, varnishing, anti-corrosion oiling, and 3PE coating. Fast Delivery for Stock Items: Standard delivery within 7 to 15 working days for items available in running inventory. OEM and ODM Services: Provides flexible customization from designs with dedicated R&D engineering support.