TRUNCATED BOTTOM CONICAL REDUCER / LAYOUT, TEMPLATE,Cone
17:15
Eccentric Reducer Sheet Metal
13:16
Curva Cônica de 4 gomos - Caldeiraria (codo conico)
21:09
ECCENTRIC REDUCER LAY-OUT/TRANSITION/TEMPLATE/Round Taper Layout
18:47
LAY-OUT PIPE END CAP/ Dome /SPHERICAL/tank head
9:40
CONCENTRIC REDUCER/CONE Lay-out/Transition/Patern/conical/Paano pag layout ng Cone
2:29
ม้วนกรวย ไทยทำไทยใช้
8:32
"현장전개"모르면 손놔야된다. 두각을 가지는 원통관의 전개도풀이
20:47