TY - GEN AU - Christ, B W C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1974-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.IR.74-579 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1974 TI - Metallographic examination of cylinder barrels made from aluminum alloy (A-356) sand castings: ER -