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中国矿业大学一种小型PPR管焊接装置及焊接方法
Release time:2023-09-01  Hits:

School Sign:第一单位
Disigner of the Invention:封力贞,孟婉婷
Type of Patent:国际
State of Patent:专利授权
Application Number:202020384616.4
Service Invention or Not:no
Application Date:2020-03-24
Publication Date:2020-11-27
Authorization Date:2020-11-27
First Author:yanxiaofei