If possible the facial area on the weld would be the steel or backing facet of your joint. The backing facet or steel facet is welded very first utilizing the little diameter electrode for the foundation pass to insure finish penetration. The a few-layer steel sheet coating ensures robust and https://www.collcard.com/post/274992_zinc-plates-are-used-for-their-corrosion-resistance-and-durability-commonly-in-c.html