2019년 4월 25일

ASTM F899, Type 440C, Hardening Stainless

ASTM F899, Type 440C, Hardening Stainless STEELMAX Steel Story   ASTM F899 규정은 Wrought Stainless 의료용 도구로 사용되는 재질에 대한 규정이고, F899 안에 Type 440C 재질이 […]
ASTM F899, Type 440C, Hardening Stainless
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