أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
OPEN SYSTEM IS NOW OUTDATED NOW A DAYS ONLY CLOSED AIR WATER INTERFACE EXPANSION TANKS ARE USED IN CLOSE THE ADVANTAGE IS THE WATER WILL BE FREE FROM EXTERNAL DUCT AND PARTICLES INCREASING THE OVERALL LIFE