Inquiry (采购产品): seal of saphir window in a pige please see under www.mts-duesseldorf.de or sensor technology. We like to seal the front window at the end of the pipe construction - without any O - Ring ! **** Hidden Message ***** Friedel Herbert Schwartz Angermunderstr. 22 DuesseldorfD - 40489 DEU Company: MTS Title: Chief Eng. Phone: ++49 203 74 21 - 40 Fax: -444 E-mail: f.schwartz@mts-duesseldorf.de **** Hidden Message ***** f.schwartz@mts-duesseldorf.de