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The Double bag is use a two-double structure . One bag is for Melon Seeds packing and the another one is for the hull, People can puts the hulls to the accessorial bag after eating very expediently. It can stick up for the environmental sanitation and reduced the cleaners workload.
Guangdong Industry Technical College
Guangzhou City Guangdong Prov., China
Yuanlong Gui
Chun Yang
Guangdong Industry Technical College
Guangzhou City Guangdong Prov., China
Minfang Pan
Zhijun Liu