"Customized Fence Product by Chinese Factory for "Middle Eastern Customer"

The question is, why do the 'steel pipes' in the video have tails? They look more like semi-finished weapons.
Chinese netizens are asking when sharing this video: Are the raw materials for Hamas rockets coming from this factory?
#IsraelGazaWar #IsraelPalestineWar #IsraelHamasWar #Israel
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