... :2008 & CE approved . B).30 years sales experience C).Size diversity(DN32-3600mm) D).Leader of Expansion joint din standard ... ,used at shock absorber and compensate for displacement.JGD mean single ball (arch),JGD-A dual ball ,JGD-B threaded rubber ... centigrade of the medium contain oil, strong alkali acid concentration, solid-state materials[Recommendation]Good value and Cost are key indicator when ...