WC6, ASTM A217, Cr-Mo Alloy Steel Casting steelmax2018-12-17T22:07:29+09:0012월 17th, 2018| WC6 은 Chromium, Molybdenum 저합금 주강품으로 ASTM A217 Steel Casting 규격 중 한가지입니다. A217 규정은 valves, flanges, fitting and other pressure- containing parts