Những kỹ thuật Gia công kim loại màu& mũi dao ren thang
38:41
Réparation d'une poignée de robinet Greenfield Tap and Die No. 6
18:56
Siêu phẩm mâm xoay chia độ tự chế
27:16
How We Made Incredible Single Helical Gear For Industrial Machine Process ||
13:37
Peu de gens connaissent ces idées astucieuses au travail
21:47
How to Rebuild a Broken Drive hub Thread SATSUMA By Wow Mechanics 1
9:46
【加工動画64】旋盤で長ネジ/How to cut long threads on a lathe using die.
22:23
Alchemy and Breathing Soul into Copper Sheet
10:59