首页>
外国专利>
Low softening, warmth absorber verschmelzglaeser beer end on the basis of sio deep 2 - b deep 2 o deep 3 - al deep 2 o deep 3 - bao alkali metal oxides - iron oxide for hermetic encapsulation of electrical components, in particular magnetically operated conductor contacts (reed contacts)
Low softening, warmth absorber verschmelzglaeser beer end on the basis of sio deep 2 - b deep 2 o deep 3 - al deep 2 o deep 3 - bao alkali metal oxides - iron oxide for hermetic encapsulation of electrical components, in particular magnetically operated conductor contacts (reed contacts)
