HY-100 Round-Bar, MIL-S-21952, Alloy Steel STEELMAX Steel Story HY-100, 강재는 환봉과 Plate 제품이 있고 MIL-S-21952 규정은 HY-100, HY-80 합금강 환봉에 대한 규정이고 MIL-S-16216 규정은 HY-100, […]
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