Detailed  venturi for filter bag cage :

carbon steel material tube , good constructions

Zinc galvanised carbon steel venturi tube , for air filter cage usage

can produce any size and length venturis according to customers requst

beautiful and smooth outshape , easy install and long life term

exactly suit for cages

good quality

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Please  kindly feel free to contact me,Jojo.

I'll give you best offer and excellent srvice.