Our products have passed ISO 9001 ,ISO 14001 and ISO18001 Export to Germany, Britain, India,and so on. OEM serive. Main material:Ceramic parts:≥93.5%Al2O3Glaze:Color white or pink, T≥1,450°Flange:TU1 (OFHC Cu) or Ni42Fe58alloyCopper contact: TU1 (OFHC Cu)Solder: Ag72Cu28alloyGate tube: TU1 (OFHC Cu) or Ni42Fe58alloyTechnical specifications:The all products can reach to the below standardsLeak ...