TY - BOOK AU - Govt of U.S TI - Specifications for welding Part-I General U1 - 623.8432 PY - 1940/// CY - USA PB - Govt printing office KW - MCE N1 - 0; 0; 0; 623_843200000000000_SPE; 0; 0; 0; 623_843200000000000_SPE ER -