L型，角钢

2x2x0.3752x2x0.31252x2x0.2502x2x0.18752x2x0.1252.5x2.5x0.5002.5x2.5x0.3752.5x2.5x0.31252.5x2.5x0.18752.5x2x0.31252.5x2x0.2502.5x2x0.18752.5x1.5x0.2502.5x1.5x0.18753x0.5003x0.43753x0.3753x0.31253x0.2503x0.1873x0.53x2.5x0.5003x2.5x0.43753x2.5x0.3753x2.5x0.31253x2.5x0.2503x2.5x0.18753x2x0.5003x2x0.3753x2x0.31253x2x0.2503x2x0.18753.5x3.5x0.5003.5x3.43753.5x0.3753.5x3.5x0.31253.5x3.5x0.2503.5x3x0.5003.5x3x0.43753.5x3x0.3753.5x3x0.31253.5x3x0.2503.5x2.5x0.3753.5x2.5x0.31253.5x2.5x2.2504x4x0.7504x4x0.6254x4x0.5004x4x0.43754x4x0.3754x4x0.3754x4x0.31254x4x0.2504x0.5004x0.5x3.5x0.5x3.5x0.3754x3.0.31254x3.5x0.2504x3x0.6254x3x0.5004x3x0.3754x3x0.31254x3x0.2505x5x0.8755x5x0.7505x0.6255x5x0.5005x0.43755x5x0.3755x5x0.31255x3.5x0.6255x3.5x0.5005x3.5x0.3755x3.5x0.31255x3.5x0.2505x3x0.5005x3x0.43755x3x0.3755x3x0.3125x3x0.2506x6x16x6x0.8756x6x0.7506x6x0.6256x6x0.56256x6x0.5006x6x0.43756x6x0.3756x6x0.7506x4x0.6256x4x0.566x4x0.5006x4x0.43756x4x0.3756x4x0.31256x0.5006x0.5x0.3756x3.5x0.31257x4x0.7507x4x0.6257x4x0.5007x4x0.43757x4x0.3758x8x1.1258x8x0.8758x8x0.7508x8x0.6258x8x0.56258x8x0.5008x6x18x6x0.8758x6x0.7508x6x0.6258x6x0.56258x6x0.5008x6x0.43758x4x18x4x0.8758x4x0.7508x4x0.6258x4x0.56258x4x0.5008x4x0.4375