JIS B1009-1991 Bolts, screws and studs-Nominal lengths , and thread lengths for general purpose bolts.rar... 上一篇:JIS B1008-1988 螺栓、螺钉和螺柱的开口销槽和金属丝孔标准下一篇:JIS B1010-2003 紧固件的名称与符号体系标准