supply of portable inverter type single phase (c&w item)portable inverter type single phase (c&w item),portable inverter type single phase welding machine as per the following specification :-(1) t ype of welding machine : portable inverter type single phase welding machine (2) input voltage frequency: 50hz (3) output current range: 20-220 amp. (4) type of cooling : air cooled (5) provision of main fuse prote ction: yes (6) length of earth cable: 10 metres (7) length of welding holder cable: 10 metres (8) input pow er capacity: 6-8 kva (9) efficiency in percentage: 80-95 (10) power factor: 0.91-1 (11)primary power supply : 220-240v ac , 50hz. (12) primary continuous current in amp.: 10 amp-20 amp (13) driver adjustment ra nge: 0-65. [ warranty period: 30 months after the date of delivery ] ]