ทำทัชชิ่งแล้ว เล่นง่าย เสียงนุ่มYAMAHA C-170 Made in Japan Release date May 1983 Discontinued years 1983 Main Specifications Face board Spruce Back plate Mahogany Side plate Mahogany Pole NATO Fingerboard Obankoru Under bridge Parisandoru Chord length 650mm