苏联机器制造业先进生产者代表团团员、锻工科瓦连柯曾在我厂锻工车间连续作了三次技术表演。他的卓越的技术引起了全车间工人同志的赞赏,并且给他们以很大的启发。科瓦连柯的表演共有四部分。其中工具锻造部分的材料,本刊第七期已经有了介绍,这儿不打算再重复。其他部分的材料,现在分别介绍如下。 The member of the Advanced Manufacturers Delegation of the Soviet Machine Manufacturing Industry and the forging engineer Kowalenko had three consecutive technical performances in our factory forging workshop. His outstanding technology has aroused the praise of the comrades of the entire workshop and gave them great inspiration. Kovalenko performed four parts. The materials for the forged part of the tool have already been introduced in the seventh issue of the journal. We do not intend to repeat it here. The other parts of the materials are now described below.