Origin and Etymology of apoptosis. New Latin, from Greek apoptÅsis a falling off, from apopiptein to fall off, from apo- + piptein to fall â more at feather.
Leeco Steel has a distribution center in Hamilton, Ontario, and is proud to provide an exceptional quality of steel that meets the CSA, Canadian Standards Association, and offers certifications for structural steel such as products like CSA G40.21 steel plates in different grades such as: 44W, 50W and 50A.
Spot welding. Resistance spot welding (RSW) is a process in which contacting metal surfaces are joined by the heat obtained from resistance to electric current. Work-pieces are held together under pressure exerted by electrodes. Typically the sheets are in the 0.5 to 3 mm (0.020 to 0.118 in) thickness range. The process uses two shaped copper alloy electrodes to concentrate welding current into a small spot and to simultaneously clamp the sheets together.