Processes and techniques which may result in a gas accumulation. The following circumstances may result in the unintentional build-up of asphyxiant gases in confined spaces. During MIG, MAG or TIG welding on the outside of fabrications, torch shielding gas can enter the fabrication through the weld root.
So here's how to make paper mache glue from water and flour so they can get their hands messy. What you need. Activity. Mix one part flour with one part of water (eg, 1 cup flour and 1 cup water, or 1/2 cup flour and 1/2 cup water) until you get a thick glue-like consistency. Add a bit more water if itâs too thick. Mix well with a spoon to get rid of all the lumps.
A variety of components are used to make ballpoint pens, including plastic, metal and chemicals. In most ballpoint pens, the writing sphere is made from brass, although you can also use steel or tungsten. In metal pens, the body, ink cartridge and spring are also made of brass or aluminum. Virtually all ballpoint pens contain a significant amount of plastic. Even the most expensive pens use plastic for the push button, ink cartridge, cap and tip.