... tig soldering torch consumable for welding spare parts long/short back cap for WP-18 TIG welding torch1.wp-18 water ... -27 air cooled and water cooled etc. Including torch head, back cap, cup gasket, collet, collet body, gas lens body, cable ... (AWS ER308, ER308L, ER309, ER316, ER316L etc) insulatorcutting long/short back cap for WP-18 TIG welding torch