夹皮沟接受苏联先进凿岩经验试验成功之后,东北有色金属管理局,于二月四日,特致电夹皮沟金矿局贺勉,电文如下:韩张局长并参加试验的全体职工同志:二日电悉,祝贺你们接受苏联新凿岩方法,显着提高掘进效率试验的初步成功。这种成绩的获得,是你们努力钻研技术,学习苏联先进经验的结果,也是高度发挥工人阶 Jiapigou to accept the Soviet advanced drilling experience after the successful test, the Northeast Nonferrous Metals Authority, on February 4, specially electroplated Hepian Jiapigou Gold Mines, reads as follows: Korean director Zhang and all the staff to participate in the test comrades: On the 2nd, we congratulate you on accepting the new Soviet rock drilling method and significantly improving the initial success of the tunneling efficiency test. The attainment of such achievements is the result of your efforts in studying techniques and the advanced experience of the Soviet Union and in giving full play to the working class