1. Arc and acetylene welding
Author: / by Harry Kerwin
Library: Central Library and Archive Center of shahid Beheshti University (Tehran)
Subject: welding,Metal work
Classification :
671
.
5
Ke
2. Arc and acetylene welding
Author: KERWIN,HARRY
Library: Central Library of Amirkabir University of Technology (Tehran)
Subject: ELECTRIC WELDING , OXYACETYLENE WELDING AND CUTTING
Classification :
TS
224
.
K44
3. Arc and acetylene welding
Author: Kerwin, Harry
Library: Central Library of Sharif University of Technology (Tehran)
Subject: ، Electric welding,، Oxyacetylene welding and cutting
Classification :
TS
227
.
K44
