Use of manganese or manganese alloys as intermediate layer in the case of the manufacture more compartment metals, in particular made of iron or steel.

公开/公告号DE643943C

专利类型

公开/公告日1937-04-21

原文格式PDF

申请/专利号DE1935G091073D

申请日1935-08-25

分类号B21K21/06;B23D65/00;B23K20/227;B23K20/233;B23K35/30;B32B15/01;

国家 DE

入库时间 2022-08-24 05:48:23