عمومی--24 صفحه--
This guide, and all the information
contained within, is intended to provide you with
helpful hints for basic welding. It is not intended
as a comprehensive manual, nor does it contain
the scope of information needed for commercial
or industrial welding purposes.
--لینک دانلود رایگان-->
http://uploadboy.me/jijq12buvq2d/Helpful Hints to Basic Welding.zip
Helpful Hints to Basic Welding