Introduction
The drafting unit of the national standard of electric soldering iron and hot air rework station in China, and the national standard "GB/T 7157-2019" participated in the formulation was released on August 30, 2019, and officially implemented on March 1, 2020;
Details
1st March 2020, the national standard "GB/T 7157-2019" which was formulated under the leading role of YIHUA came into effect.
