Most mound ceremonial centers are built near rivers and lakes. Mound builders lived in small communities of families led by elders. They made pilgrimages to the closest ceremonial centers to make offerings to their gods and to bury their loved ones. The ceremonial centers were built on timbers, often with a temple for sacrifices on top and crypts to bury the dead underneath.
There are many different factors that may determine welding sequence. Of course, a 1G weld is defined as a Flat (1) Groove (G) weld and the 1G is usually used when describing the position of welding any flat material such as bar, sheet, or plate. The thickness of the material may affect sequence.
AWS A5.1/A5.1M is the Specification for Carbon Steel Electrodes for Shielded Metal Arc Welding: E7018 is one of the most common used stick electrodes rods so it will be used as an example. E7018 E = Electrode, The first two digits = tensile strength minimum in ksi of the weld metal 70,000 psi in this case.E7018 The next two or last two digits give the type of coating/covering, type of current and welding position usage. E7018 The third digit of 1 = all position.7018 E = Electrode, The first two digits = tensile strength minimum in ksi of the weld metal 70,000 psi in this case. E7018 The next two or last two digits give the type of coating/covering, type of current and welding position usage. E7018 The third digit of 1 = all position.