公制精抛双开口扳手采用优质钢整体锻造而成，强度高，抗扭矩性好表面镜面抛光，电镀铬处理，防锈耐腐蚀。符合ANSI标准型号规格mm长度mm22LB0145.5×712622LB0018×1014522LB00210×1216322LB00311×1318122LB00412×1418122LB01513×1518922LB01613×1618922LB00514×1719922LB00716×1819922LB00617×1922122LB01719×2224322LB01022×2426522LB01224×2728722LB01827×3029822LB01330×32311)