혹시 symbol rayo(으)로 찾으셨나요?

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• Edgetech 텅스텐, Tungsten 메탈 나노 미크론 초정밀 재료, 원료 Materials 상담 문의 재료코리아 01098059829 allmaterials@naver.com Tungsten W Tungsten is a chemical element with the symbol W and the atomic number 74. composites and alloys are used in various applications, especially in incandescent lights as filaments, in X-ray blog.naver.com · 2023.02.07