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不“滚”杯 / Not "roll" Cup


Today's vacuum cup will be rolling when pouring,so it takes not convenient to the old man especially. So appearing this don't roll vacuum cup whose edge has a cripling. When it is falling down, the cripling would stop vacuum cup rolling . SO it is more efficient and convenient when opening


Guangdong Industry Technical College

Guangdong Industry Technical College
Guangzhou, China