Size: 1-7/8" , Thread Pitch 8 TPI Length: 178 mm, Material grade: 12.9
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3
Fan blades for ST hall roof fan
Model: BDWT-1-22 , Volume 155000 m3/h , Pressure 135 Pa Motor power 7.5 Kw , Speed 360 r/min ,Manufacturing date 2016.08 , Lot number DZGY******, date 2016.08