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Category:
PRODUCT’S HISTORY
Category:
PRODUCT’S HISTORY
The idea of solid-waste collecting manhole
Copyright Office of Viet Nam issued the Useful Solution Certificate
The 1st version of plastic solid-waste collecting manhole was born.
The idea of anti backflow manhole
The 1st version of plastic anti-backflow manhole was born.
Participated and granted as one project of Program 68 (Ministry Science and Technology)
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