TY - RPRT TI - The Adherence of porcelain enamel to aluminum: progress report February 1, 1969 through June 30, 1969 AU - Gugeler, Albert L PY - 1969 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS RPT 10050 DO - 10.6028/NBS.RPT.10050 ER -