Beijing Huasheng Precious metal Materials Co., LTD., Faʻavae i le 2003, ua faʻauluina i uʻamea e le o ni uʻamea (tungsten, molybdenum, tantalum, niobium, nickel, cobalt, ferroalloy and charge) mo se taimi umi. Tuuina atu ma le gaosiga: tungsten ma molybdenum oloa, tantalum ma niobium prod...
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