本刊记者报道:前已报道,第一机械工业部在天津 召开的齿轮加工机床与齿轮加工专业会议,曾按专业性 质划分为人字齿轮及诺维柯夫齿轮组、螺旋伞齿轮组、 圆柱齿轮组、小模数齿轮组、齿轮加工工艺组、齿轮刀 具和卡具组、热轧齿轮组等七个专题级,对各厂所制造 的土、洋齿轮加工机 Reporter of the correspondent: It has been reported that the meeting of gear processing machine tools and gear processing held by the First Machinery Industry Ministry in Tianjin was divided into herringbone gears and Novikov gear sets, spiral bevel gear sets, and spur gears according to the professional nature. Group, small module gear group, gear processing technology group, gear cutter and fixture group, hot rolling gear group, etc. seven special grades, the earth and ocean gear processing machine manufactured by each factory