Stainless Steel Square or Rectangular Tubes Grade: 201,202,301,304,304L,316,316L Standard: ASTM,DIN,JIS,SUS,GB Size: F12.7*12.7mm;F15mm*15mm;F20mm*10mm;F19mm*19mm;F25mm*13mm;F22mm*22mm;F23mm*23mm;F28mm*28mm;F36mm*23mm;F30mm*15mm;F25mm*25mm;F30mm*30mm;F33mm*21mm;F35mm*35mm;F38mm*38mm;F38mm*25mm;F50mm*50mm;F50mm*25mm;F60mm*30mm;F75mm*45mm;F95mm*45mm; Thickness: 0.2mm to 2.0mm