ከፍተኛ ንጽህና 99,999% ሲልከን ኦክሳይድ ግብ - ቻይና ከ አምራቾች, ፋብሪካ, አቅራቢዎች

High Purity 99.999% Silicon Oxide Target, , , , High Purity 99.999% Silicon Oxide Target,