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Strengths being / Strengths being

Strengths being

This design of trash can using principles
of lever and springgives an adjustable
diameterof bung hole.
It can not only adapt a variety of sizes
and diameter of garbage bags, but also
hold tight and fix the garbage bag to
load more.

University

East China Jiaotong University

East China Jiaotong University
---Nan chang city, China

Design

East China Jiaotong University

East China Jiaotong University
---Nan chang city, China