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China
Personne àcontacter Ms. yu
hongqi, Tianjin, Tianjin
Index Grade First Second Appearance White or gray power Initial melting point ≥ **5.0 **4.0 Heat loss %≤ 0.*0 0.*0 Ash contant %≤ 0.*0 0.*0 Residues on sieve (**0µm) %≤ 0.*0 0.*1