- The On-site Antifreeze Recycling Company~ Hi-Tech Industries, Inc. 9418 Irondale Ave. Chatsworth, Ca. 91311 U.S.A 800-553-0509 818-993-9960 818-993-4317 - fax e-mail hi-tech@hi-techind.com Thank you for visiting our web site, we are Hi-Tech Industries, Inc... A Federal Government Contractor, in business since 1979. We specialize in antifreeze recycling equipment, supplies and services. Not all ...www.hi-techind.com