炭化 <10%, SiO2>80%, 温度<4%
22 Street No.7, Tan Phong Ward, District 7, Ho Chi Minh City, Vietnam
炭化 <10%, SiO2>80%, 温度<4%
22 Street No.7, Tan Phong Ward, District 7, Ho Chi Minh City, Viet Nam
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