00304nam a22001217a 4500020001800000082001400018100001900032245006200051260002900113300000800142650001600150650001600166  a9788123925134  a671.15LUQ  aLuqman, Midhat  aSheet Metal Press Design and Making: a practical approach  aNew DelhibCBS Pubc2015  a392  aMetal Sheet  aTool Design