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Anda harus memperhatikan metode untuk menarik emas dan membongkar bahan-bahan berlapis emas. Sampah elektronik memurnikan emas. Kewirausahaan. Ubah sampah menjadi harta karun
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Jurusan logam mulia emas cair Hong Kong memandu limbah emas elektronik, limbah emas, limbah perak, chip IC, dll., pengajaran teknologi penarikan emas dan perak, dan pelatihan pelatihan teknis ekstraksi katalitik tiga arah untuk pemurnian paladium paladium paladium., teman yang menyukai teknologi pemurnian logam mulia, klik dua kali ikuti! @ 手直播 @ 手直播 @ 手直播 @ Kaishou Creator Center @🔥Kota pelabuhan logam mulia🔥 # Mobil tiga yuan katal...
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Pemurnian emas dari sampah elektronik. Pemurnian katalitik tricone mobil dari teknologi platindium paladium
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