... ,309,310,321,904L... 2. Dia:1mm to 500mm 3. Form:Round square Basic Info. Model NO.: 201, 301, 302, 304, 304L, 316 ... -500mm,: 1-6meters Special specifications can also be produced according to drawing and sample 3. Material Grade 201, 301, 302, 303 ... .0120 -0.0180 -0.0300 -0.0480 -0.075 6--100 -0.0090 -0.0150 -0.0220 -0.0360 -0.0580 ...