摘要
The Shandong Jiuyang Enterprise(Group) Corporation is a large nationalenterprise,with a staff of 3,800.It hasabout 100 varieties of products including pigiron,casting piece,bearing,crankshaft,fan,spring starter,brake plate and hub,andmodified alloys for special steel.Amongthem,the speed transforming bearing seriesmade to the patents of the USA,the UK andFrance,spring starter developed at home,and new-type dispatch winch,obtain
