... boats etc, which are used in electronics, electronic vacuum, heating part of vacuum furnace and illumination etc.Technology: forged, ... producing electric light source parts and electric vacuum componentsfor producing heating elements and refractors in high temperature furnacesfor producing W-boats, ... ,Type of payment : T/T ,Escrow , Wester Union, L/C ,ect .2, Payment Terms : Decided by two sides. 1, ...