In a fire how do you make sure you have a good grip on the handle and that it will lock into place? Is there something you feel when the handle has been pulled? If your hand is sweaty how do you make it so it won't slip when pulling the handle down? If your hand slips can you pull the handle again?
rubber was once from the rubber tree. It was critical to things like world war II. However amost all rubber now is from the petro chemical industry. Almost no one grows rubber trees any more. Modern rubber is NOT an agroforestry product. However any rubber that originated from a tree, reguardless of what form it is in now, is an agroforistry product.
Why would you need a gauge ? The weight of the cylinder is a measure of the amount of gas inside. And when you are releasing the gas , you don't want it to come out in a regulated way , the way you want in an oxy-acetylene cylinder , which is used in gas-cutting.
