耙矿绞车标准制定工作第一阶段结束由锦州矿山机械厂、重庆矿山机器厂、长沙矿山通用机器厂等单位组成的耙矿绞车标准制订工作组于四月下旬在锦州矿山机械厂开始工作,到五月上旬已完成第一阶段工作,制订出耙矿绞车标准草案,现已发至有关单位广泛征求意见。新的标准草案中包括参数系列和技术条件两部份。参数系列是在 JB964—67的基础上, Rake mine winch standard-setting work concluded the first phase of the Jinzhou Mining Machinery Plant, Chongqing Mining Machinery Factory, Changsha Mining General Machinery Factory and other units of rake mine winch standard-setting working group in late April Jinzhou Mining Machinery Plant to work, to In the first half of May, the first phase of work has been completed and a standard draft for rake winch has been drawn up. It has been sent to the relevant units for extensive solicitation of opinions. The new draft standard includes two series of parameters and technical conditions. Parameter series is based on the JB964-67,