long/short back cap for WP-18 TIG welding torch accessory of tig soldering torch consumable for welding spare parts long/short back ... .wp-18 water cooled tig torch spare parts2.Accessory of tig torches.3.Different series and specifications of welding nozzles,tips,shield cup ... diffuser swan neck, insulator ,steel liner, rear handle, cable...... 5, TIG welding gun and spare parts, such as WP-9, WP ...