美标 等边角钢? 英制规格? 边宽*边宽*边厚（英寸）? 规格型号? 边宽*边宽*边厚(mm)?? 理论重量?(kg/m)??L3/4×3/4×1/8??L19*19*3.2??0.88??L1×1×3/16??L25.4*25.4*4.8??1.73??L1×1×1/8?? L25.4*25.4*3.2??1.19??L1-1/4×1-1/4×3/16??L32*32*4.8??2.20??L1-1/4××1-1/4×1/8??L32*32*3.2??1.50??L1-1/2×1-1/2×3/16??L38*38*4.8??2.68??L1-1/2×1-1/2×5/32??L38*38*4.0??2.26??L1-1/2×1-1/2×1/8??L38*38*3.2??1.83??L1-3/4×1-3/4×3/16??L44.5*44.5*4.8??3.16??L1-3/4×1-3/4×1/8?? L44.5*44.5*3.2??2.14??L2×2×1/4??L51*51*6.3??4.75??L2×2×3/16??L51*51*4.8??3.63??L2×2×1/8?? L51*51*3.2??2.46??L2-1/2×2-1/2×5/16??L64*64*7.9??7.45??L2-1/2×2-1/2×1/4??L64*64*6.4??6.11??L2-1/2×2-1/2×3/16?? L64*64*4.8??4.57??L3×3×3/8??L76*76*9.5??10.72??L3×3×5/16??L76*76*7.9??9.09??L3×3×1/4??L76*76*6.4??7.30??L3×3×3/16??L76*76*4.8??5.53??L3-1/2×3-1/2×3/8??L89*89*9.5??12.66??L3-1/2×3-1/2×5/16??L89*89*7.9??10.72??L3-1/2×3-1/2×1/4?? L89*89*6.4??8.64??L4×4×1/2??L102*102*12.7??19.07??L4×4×7/16??L102*102*11.1??16.83??L4×4×3/8??L102*102*9.5??14.60??L4×4×5/16??L102*102*7.9??12.21??L4×4×1/4??L102*102*6.4??9.83??L5×5×1/2??L127*127*12.7??24.13??L5×5×7/16??L127*127*11.1??21.30??L5×5×3/8??L127*127*9.5??18.32??L5×5×5/16??L127*127*7.9??15.34??L6×6×5/8??L152*152*15.9??36.05??L6×6×9/16??L152*152*14.3??32.62??L6×6×1/2??L152*152*12.7??29.19??L6×6×7/16?? L152*152*11.1??25.62