With many years experience, Sino International can provide its oversea customers at the competitive cost of quality assurance products fused quartz, silica, quartz / garnet sand and powder, synthetic sapphire, silicon wafer, piezoelectric acousto optic ...

Hunan Guangyang Advanced Industrial Co.,Ltd, specialized in theproduction for different ceramic items, such as gold melting dish,fused silica crucible, fire assaying piezoelectricceramic, graphite lab porcelainware, insulatorand etc ...