Hi , Do you solder glass alloy (without lead Pb). I amm interested to seal two glass sheets hermetically(air tight). I guess you have such mixtures that has same thermal expansion than glass and melting point around less or equal to 500C?. Your earliest reply would be highly appreciated.Contact Person：Saim MemonCountry：United KingdomPhone：0044-773-5518528Company：Loughborough University, UKEmail：S.Memon@lboro.ac.uk我们公司没有，有需要的拿去，多多出单哦、、、
