Ralph McKay Industries Inc. 130 Hodsman Rd. , Regina , Saskatchewan S4N 5X4 Canada About Solutions products Companies Ralph McKay Industries Inc. Products Low Crown Low Crown 0 Share Available in 4 sizes 7” - 9” - 10” - 12”. Stem angle is 47 deg and is made from 1/4” high carbon steel. Used on many of today’s Air Seeders. Most popular related searches cultivator field cultivator Customer reviews No reviews were found for Low Crown. Be the first to review! Add your review Publish your review Great! review successfully added!