ceramic housing for semiconductor, thyristor and diode, passed ISO9001 ISO14001 OHSAS 18001. Export to Germany,Britain OEM Quality products are SAIYING keys to our sustainable growth over the years. Even in the rapidly changing world like today, our priority and commitment to product quality have been steadfastly maintained.Main material:Ceramic parts:≥93.5%Al2O3Glaze:Color white or pink, T≥1,450 ...