Water Ripple Stainless Steel Sheet
ASTM A36 Black Surface Treatment 25X25 Square Steel Tube and Steel Hollow Section for Construction and Machinery
ASTM A36 steel rectangular tubes offer high durability for construction, machinery & transport. Available in 30x30-500x500mm sizes with black/galvanized/painted surfaces. Export packaging, 10-ton MOQ, and 30-day lead time from China.
Black Surface Treatment Square Steel Tube and Rectangular Steel Pipe for Pipeline Transport in 30*30-500*500 Size Range
High-quality alloy steel square & rectangular tubes. Durable, versatile for construction, machinery & transport. Wide size range (30x30-500x500mm), custom lengths, export packaging. Competitive pricing, 500MT monthly capacity.
Black Surface Treatment Square Steel Pipe and Rectangular Steel Tube in 30*30-500*500 Size Range for Pipeline Transport
Low-cost ERW black carbon steel pipes in square/rectangular shapes. Durable construction for structural, machinery & transport applications. Wide size range (30x30-500x500mm), export packaging, and 500MT monthly capacity. Competitive pricing with reliable quality from major Chinese steel mills.
SS400 Black Surface Square Steel Tube 30*30-500*500 Hollow Section ERW Steel Pipe
SS400 MS steel ERW square & rectangular hollow tubes. Durable construction for machinery, pipelines & structural use. Wide size range (30x30-500x500mm), custom lengths, export packaging. Competitive pricing with 500,000kg monthly capacity.
Hot Rolled Galvanized Square Steel Pipe Hollow Section Carbon Steel Tube 30*30-500*500
Hot-rolled rectangular carbon steel tubes, galvanized for corrosion resistance. Available in square & rectangular sections (30x30-500x500mm). Used in construction, machinery & transport. Export packaging, 500MT monthly capacity. Custom sizes available.
Black Surface Treatment Square Steel Tube 25x25 to 200x200 for Pipeline Transport
Hot sale black square steel tubes from 25x25mm to 200x200mm. Durable carbon steel construction with export-standard packaging. Custom sizes & materials available. High capacity: 500,000 kgs. Used in construction, machinery, and transport.
Black Surface Treatment Square Steel Pipe SS400 S275JR S355JR in 30*30-500*500 Sizes
Durable welded & seamless square steel pipes in SS400, S275JR, S355JR grades. Custom sizes 30x30-500x500mm, black/galvanized surface. Export packaging, 10,000MT monthly capacity for construction, machinery, and structural applications.
ASTM A106 Black Surface Square Steel Tube and Rectangular Steel Tubing in 30*30-500*500 Size Range
ASTM A106 square & rectangular steel tubing. Durable, versatile for construction, machinery, and transport. Wide size range (30x30-500x500mm), custom lengths, export packaging. Competitive pricing, 500MT monthly capacity.
SS400 S355J2 Low Carbon Black Surface Treatment Square Steel Tube 30*30-500*500 Rectangular Hollow Tube
Factory-direct SS400/S355J2 low carbon black steel rectangular tubes. Durable for construction, machinery & transport. Custom sizes 30x30-500x500mm, export packing, 10-ton MOQ. Competitive pricing & reliable quality.
Black Surface Treatment Square Steel Tube with 30*30-500*500 Size Range and Galvanized or Painted Surface
High-quality steel square tubing in sizes 30x30-500x500mm. Available in black, galvanized, or painted finishes. Export-standard packaging with 10,000MT monthly capacity. Custom lengths and materials including SS400, S235JR, and 4140.
High Quality Galvanized Black Surface Square and Rectangular Steel Tubes 30*30-500*500
High-quality galvanized square & rectangular steel pipes. Durable black surface, wide size range (30x30-500x500mm), custom lengths. Export packaging, 10,000MT monthly capacity. Ideal for construction, machinery, and structural applications.
Black Surface Treatment Square Steel Tube 10*10 to 400*400 Size Range Factory Direct Supply
Factory-direct square hollow steel tubes from 10x10mm to 400x400mm. Available in black, galvanized, or painted finishes. Export-standard packaging with 10,000MT monthly capacity. Custom sizes and materials including SS400, S235JR, 1020.
China Black Surface Treatment Seamless Square Steel Pipe 30*30-500*500 for Construction and Machinery
Durable black & galvanized square steel pipes (30x30-500x500mm). Seamless construction, export packaging, multiple certifications (TISCO, BAO STEEL). Custom sizes & 500MT monthly capacity for construction, machinery & transport.
Low Carbon Seamless Square Steel Pipe with Black Surface Treatment and 30*30-500*500 Size Range
Durable low carbon seamless square steel pipes in black finish. Wide size range (30x30-500x500mm), export packaging, and 500MT monthly capacity. Competitive pricing with custom options available.
Black Surface Galvanized Square Steel Tube 30*30-500*500 for Construction and Machinery
High-strength A106B square steel tubing in sizes 30x30-500x500mm. Black, galvanized, or painted surfaces. Export packaging, 10,000MT monthly capacity. Ideal for construction, machinery, and structural applications.
S355JR Carbon Steel Seamless Square Tube with Black Surface Treatment in 30*30-500*500 Sizes
EN 10025 certified S355JR/J0 seamless square tubes. High strength, durability & impact resistance for construction, machinery & transport. Custom sizes 30x30-500x500mm. Export packaging & 500MT monthly capacity.
Factory Supply S235JR S355JR Square Tube with Black Surface Treatment Size 40*40 - 500*500
S235JR & S355JR square tubes (40x40-500x500mm) in stock. High strength, durability, and EN 10025 certification. Export packaging, custom sizes, and competitive pricing for construction, machinery, and pipeline industries.
S355J2 Square Steel Pipe with Black Surface and 30*30-300*300 Hollow Section for Structural Applications
High-strength S355J2 steel square pipe, 100x100x10mm. EN 10025 certified, excellent impact resistance at -20°C. Durable black surface, export packaging. Custom sizes available. Ideal for structural and industrial applications.
ASTM A500 Square Steel Pipe with Black Surface Treatment in 30*30-300*300 Hollow Section
ASTM A500 & S355 certified square/rectangular steel pipes. High yield strength (355 MPa), durable black finish. Custom sizes, export packaging. For structural, automotive & furniture applications.
Black Surface S355JR Grade Square Steel Pipe 30*30-300*300mm Hollow Welded Steel Pipe
Certified EN10210/EN10219/ASTM A500 steel pipes. High-strength S355JR grade, 15x15-600x600mm sizes, 1.0-30mm thickness. Durable black surface, export packaging. 500,000kg monthly capacity for structural applications.