00315nam a2200109Ia 4500008004100000020001800041040002900059050002200088100001600110245003700126260004200163230107s9999||||xx |||||||||||||| ||und||  a0 7131 3602 2  cChuka University Library  aTS 227 bG58 1986  aGourd, L.M. 0aPrinciples of welding technology  aEdward Arnold publisherbLondonc1986