This comment is even better for advice:
“For aluminum welding, operators are required to ensure that the basic material clean and remove any impurities and alumina hydrocarbon cutting oils and….”
I want you to know that I did not add the “…”. I guess they didn’t want to share all the information at once. Maybe there will be a follow up comment that completes this one. Maybe this is a cliffhanger comment and it won’t be completed until next season. Maybe they don’t care about anyone or anything and want people to start welding something and then not have the info to finish the project.
Oh I’m being mean. They probably thought they were on twitter and ran out of room.