MgO spacer,MgO Insulator

MgO spacer,MgO Top Pieces:1,certificate: SGS2,model:the size can be customized according special requirements,3,chemical composition: MgO ≥ 98.5% CaO ≤ 0.3% Fe ≤ 0.1% Si ≤ 0.5% Al2O3 ≤ 0.3%

4,the Size now we have: (OD:mm) 4mm, 5mm, 6mm,7mm,8mm,9mm,10mm,11mm, 12mm,13mm,14mm,15mm, 16mm,17mm,18mm,19mm,20mm,21mm,22mm,23mm,24mm....5,apperance:white color,smooth6,it can be used at the top of a magnesium oxide tube