Steel is the most common material for spring washers due to its ease of process and its high tensile strength. Chrome vandium alloy is a higher quality steel with a good through-hardening capability; it is used to make very thick spring washers.
How to Prevent Swimmerâs Itch. Thereâs no cure-all to eliminate swimmerâs itch. The negative symptoms are, ironically, a problem of our own immune systemâs making, and short of abstaining from swimming altogether, thereâs a risk of getting swimmerâs itch in a Northern Michigan lake.
Claim: Those who go swimming less than one hour after eating will be taken by a cramp and drown. Example: [Collected on the Internet, 2001] I was a kid in the 1960s, and I used to hear the âDonât go swimming for an hour after you eat or youâll get crampsâ exhortation from my mother.