PITTSBURGH - The plans of reorganization for refractory products manufacturers Global Industrial Technologies Inc. (GIT) and North American Refractories Co. (NARCO), which include multimillion-dollar trusts to pay asbestos and silica personal injury claims, became effective April 30, more than 11 years after the companies filed Chapter 11 petitions, according to notices filed May 1 in a Pennsylvania federal bankruptcy court (In re: Global Industrial Technologies, Inc., et al., No. 02-21626, and In re: North American Refractories Co., et al., W.D. Pa. Bkcy.).