There are settings for both gas pressure and flow rate. These can vary depending upon the welding position, metal type/thickness, type of gas used, and conditions (wind, drafts etc.) My welding instructor told us that 20-20 is a good place to start (20 psi, 20cfm flow).
It is the one lettuce that doesn't have a lot of Vitamin K. One cup of iceberg lettuce contains only about 13 micrograms (mcg) of Vitamin K. This is a low amount and should be safe for you to use as part of your diet while on CoumadinÂ® (warfarin). Thanks for writing, Timothy S. Harlan, MD, FACP. Dr. Gourmet.
The largest supermarket chain in the area is still charging 99 cents for iceberg lettuce, and $1.89 per pound for stem tomatoes. However, local chains Heinen's and Acme Fresh Market, are charging $2.50 and $2.39 per head of lettuce, respectively, as of Monday.he more we sell, the more we lose.. The price is still relatively high, he says, since Dave's would normally sell a head of iceberg lettuce for around 89 cents. Salsman said Dave's is charging $2.49 per pound for large tomatoes, and not making money on those, either.