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Qingdao,Shandong,China China
Silica sol belongs to colloid. It is tasteless and nontoxic, the chemical molecular formula is mSiO2.nH2O. Since the colloid grains are minute(10~20n
Quartz Sand (silica sand) for casting isfromnatural sedimentary sea sand with excellent quality. To produce high quality casting sand, scrub sand, hig
Personne àcontacter Amber Null
Nom de la société Qingdao, Shandong
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