Vacuum technology - Flange dimensions GBT 6070-2007GBT 4983-2003 Vacuum technology - Quick disconnect connector dimensions - Part 2:Vacuum technology - Quick - release connector dimensions - Part 2: Tightening type GBT 4983-2003Vacuum technology - Quick - release connectors - Part 1: Clamping type GBT 4982-2003Terminology for vacuum technology GB / TNanjing buffalo Mechnical Equipment Co,.Ltd
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