【Haichuan’s Guess】Looks like a caterpillar; I don’t know why
Thread Content
Guess what this object is
In terms of era, it should be modern industrial production
Used for oil absorption in industrial wastewater treatment.
This is the packing in the high-flow water filtration tank. It is designed this way so that during backwashing, the packing can be easily turned and rubbed to remove adhering substances.