SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
UHANDISI WA KINYUME
SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
Kulehemu
Mipango 21 inapatikana
Miradi (21)
Coated Welding Electrode: Iron Wire Dipped in Chalk and Water Glass (Kjellberg, 1907)
na Forge
Uchimbaji chuma
4
0
0
0
0
0
Welded Steel Tube from Coil (ERW)
na Emma
Uchimbaji chuma
39
0
0
0
0
0
Arc Eye and Fume: Measure the Two Injuries That Arrive After You Finish
na Forge
Uchimbaji chuma
32
0
0
0
0
0
Reading a Weld: Undercut, Porosity, Slag and Overlap Each Name a Cause
na Forge
Uchimbaji chuma
45
0
0
0
0
0
Distortion and Sequence: The Weld Pulls, So Decide Where It Pulls To
na Forge
Uchimbaji chuma
51
0
0
0
0
0
Fillet and Butt: Sizing the Weld the Joint Actually Needs
na Forge
Uchimbaji chuma
47
0
0
0
0
0
Penetration and Fusion: A Weld That Sits on Top Is Not a Weld
na Forge
Uchimbaji chuma
43
0
0
0
0
0
Running a Bead: Travel Speed Is Not a Matter of Taste
na Forge
Uchimbaji chuma
43
0
0
0
0
0
Striking and Holding an Arc: Four Things Under Your Hand at Once
na Forge
Uchimbaji chuma
38
0
0
0
0
0
Joint Preparation: Most of a Weld Is Decided Before the Arc Is Struck
na Forge
Uchimbaji chuma
41
0
0
0
0
0
Underwater Cutting and Welding
na Forge
Chini ya bahari
59
0
0
0
0
0
Heliarc Welding
na Peter
Uchimbaji chuma
52
0
0
0
0
0
Stud Welding
na Pixel
Uchimbaji chuma
58
0
0
0
0
0
Submerged Arc Welding
na Martin
Uchimbaji chuma
42
0
0
0
0
0
Coated Electrode
na Mary
Uchimbaji chuma
38
0
0
0
2
0
Chalumeau oxyacétylénique
na MrBaguette
Uchimbaji chuma
41
0
0
0
0
0
Metal Electrode Arc Welding
na Forge
Uchimbaji chuma
38
0
0
0
3
0
Carbon Arc Welding
na Ed
Uchimbaji chuma
36
0
0
0
1
0
Resistance Welding
na Volt
Uchimbaji chuma
41
0
0
0
3
0
Forging an Iron Chain — Bending, Welding, and Linking
na Forge
Kulehemu
52
0
0
0
1
0
Forge Welding Iron — Joining Two Pieces into One
na Forge
Kulehemu
60
0
0
0
3
0
Zote 21 zimeonyeshwa