GB_5780-2000_六角头螺栓_C级全套三维模型: M5,M6,M8,M10,M12,M16,M20;完全按照GB5780标准尺寸绘制，欢迎大家下载 m5-25-gbt5780-2000.prt.1(716.62KB)，m16-65-gbt5780-2000.prt.10(789.75KB)，m16-70-gbt5780-2000.prt.11(751.27KB)，m16-80-gbt5780-2000.prt.11(727.07KB)，m16-120-gbt5780-2000.prt.11(672.71KB)，m16-110-gbt5780-2000.prt.11(669.67KB)，m16-90-gbt5780-2000.prt.11(714.71KB)，m16-100-gbt5780-2000.prt.11(715.85KB)，m16-160-gbt5780-2000.prt.11(897.25KB)，m20-80-gbt5780-2000.prt.12(769.79KB)