glass-bubble.com
网站标题：	Hollow glass microspheres, Glass bubble, Glass microsphere, Floater , Floating Beads -> Sinosteel...
网站简介：	Glass bubble , Hollow Glass Microspheres & Floater Manufacturer - China Supply of Sinosteel glass beads,glass bubble,floater, pearl drift from Sinosteel Maanshan Institute of Mining Research Co., Ltd., Hollow glass microspheres are used in thermal insulation coating, putty, plastic casting pol
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