UM-75(75A) Hydraulic thru feed type thread rolling machine 油壓滾通式滾牙機 

-available for both plunge feed & thru feed, 滾通與固定兩用
-suitable for thread rods, rebar, wind fan screws, high strength screws 適合加工牙條，風扇螺絲，高強度螺絲....等等
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-Yu Hsien & Yu Adam 攝影及編排
-WJH Photos 剪接及後製
-背景音樂：
Artist: Wonki
Track: Sunset Paradise
Length: 2:07
Audio Source: Music by Wonki
www.soundcloud.... wonkimusic
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