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Across: 2. used to control the working pressure of the gases. 5. Gas with maroon cylinder 6. It is known as pressure less welding or _____ welding 9. In ___ welding, the edges of two metal parts are melted by an electric arc and the joint is made. 10. ___ welding is the process of melting and joining metal parts by means of a gas flame.
Down: 1. process of joining two metal parts by applying heat. 3. An electric arc is made between the _____ and the metal parts. 4. ________ welding is also known as pressure welding. 7. Gas with black cylinder 8. used to connect the two cylinders with the welding torch through regulators.