金丝雀工程绘图纸***、快速、***工程专用复印纸。规格表：克重规格管芯80gA0+920/914mmX150米/50米50米2英寸/150米3英寸80gA0880/841mmX150米/50米80gA1620mmX150米/50米80gA2420mmX150米/50米80gB01070mmX50米80gA0平板/841X1189mm80gA1平板/594X841mm80gA2平板/420X594mm)