UNE 19-680 Pt.13-1985
金屬通行鑰匙,用于氣體燃料的凸形錐體,額定精確度達到20kPa(0.2 kgf/cm2),在內部裝備中手工使動.平尖連接的凸橄欖葉蹄形鑰匙
Metal access key, convex cone for gaseous fuels, rated accuracy to 20kPa (0.2 kgf/cm2), manually actuated in internal equipment. Convex olive leaf hoof key with flat tip connection