The invention relates to an electric thermal welding device especially an energy-saving electric iron.
本发明涉及电热焊接装置，特别是一种高效节能电烙铁。
The effects of tempering weld-pass treatment on toughness of HAZ of X80 pipeline steel were studied by the technique of welding thermal simulation and the method of microscope analysis.
采用焊接热模拟技术和显微分析方法，研究了回火焊道热处理对X80级管线钢焊接热影响区韧性的影响规律。
Thermal glass for welding mask use.
焊接的热的玻璃戴面具使用。
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