Features: Carbon-steel impeller, No. 3.5~6 is A TYPE transmission, No. 7~12 is C TYPE transmission, No. 14~20 is E type transmission. No. 3.5~12with integrating case. No. 14~20 with half-open case, connected via bolt.
Application: Universal centrifugal fan.
Specification: No. 3.5, 4, 4.5, 5, 6, 7, 8, 10, 12, 14, 16, 18, 20. And No. 10, 12, 14, 16, 18, 20are double inlet, E typetransmission.
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