2017년 9월 22일Categories Cobalt Alloy Non-Ferrous(비철)NIVAFLEX 45/18, 2.4782, Spring Wire Cobalt AlloyNIVAFLEX 45/18, 2.4782, Spring Wire Cobalt Alloy STEELMAX Metal Story NIVAFLEX 45/18, 2.4782 는 extreme strength spring 금속입니다 age-hardening (시효 경화) + cold […]