Synthetic star rubies and sapphires were manufactured by the Linde Air

德国弗赖翁WIEDE'S CARBIDWERK 制作的合成星光蓝宝石和红宝石

Synthetic star rubies and sapphires were manufactured by the Linde

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Synthetic star rubies and sapphires were manufactured by the Linde

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Dense accumulations of iridescent needles were visible within the