cleft welding

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cleft weld — noun : a weld made by upsetting the ends of the work by cutting a V shaped opening in the end of one piece, by forming the end of the other piece to fit the first, and by joining the pieces by welding … Useful english dictionary
Chemical reaction — Chemical reactions redirects here. For the 2007 television episode, see Chemical Reactions (Men in Trees). A thermite reaction using iron(III) oxide. The sparks … Wikipedia
hand tool — any tool or implement designed for manual operation. * * * Introduction any of the implements used by craftsmen in manual operations, such as chopping, chiseling, sawing, filing, or forging. Complementary tools, often needed as auxiliaries to… … Universalium
Fetal alcohol syndrome — (FAS) is a disorder of permanent birth defects that occurs in the offspring of women who drink alcohol during pregnancy. It is unknown whether amount, frequency or timing of alcohol consumption during pregnancy causes a difference in degree of… … Wikipedia

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