Espina, Raymond C. Welding 101 : basic inputs on shield metal arc welding for beginners / Raymond C. Espina, Napoleon G. Flores, Porferio M. Almerino Jr. - Manila : Lorimar Publishing Inc., 2021. - viii, 126 pages ; 26 cm. ISBN: 9786218035683 Pbk. Np. Subjects--Topical Terms: Shielded metal arc welding. LC Class. No.: TK 4660 E87 2021 F LCLib