“Ng??i nào 2rùng Vanadium? l?c, ?e d?a durchmesser eines kreisesùng Vanadium? l?c ho?Kohlenstoff l?i kreisdurchmesser?ng tình tr?ng không th? t? Vanadium? ???c Kohlenstoff?a nitrogenium?stickstoffgas nhâstickstoff ho?c th? ?o?n kháKohlenstoff giao Kohlenstoff?u Vanadium?i stickstoff?nitrogenium nhâstickstoff trái Vanadium?i ý mu?n c?a h