Double-headed open-ended wrenches,double-headed box wrenches and combination wrenches—Maximum widths of heads
MOD ISO 3318:2009
全国五金制品标准化技术委员会工具五金分技术委员会(SAC/TC 174/SC 2)
本标准规定了双头呆扳手、双头梅花扳手、两用扳手头部外形的最大尺寸。
本标准适用于扳拧螺栓和螺母或其他紧固件的呆扳手、梅花扳手和两用扳手，上述扳手的命名与术语按照GB/T 4625的规定。
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