Khrueaphue, Thongchai. “Comparative Study of Hard-Facing Weld Metal Properties on Grade 900 Railway Steel Using H450R and E120-18G SMAW Electrodes”. Frontiers in Engineering Innovation Research 18, no. 1 (June 26, 2020): 111–120. Accessed May 31, 2024. https://ph01.tci-thaijo.org/index.php/jermutt/article/view/241890.