सोलास अनुमोदित k प्रकार खुले प्रतिवर्ती inflatable lifferfatable liferfatable liferfatable liferferatable liferfatable liferferatable liferfeatable liferferatable liferferatable liferferatable liferferfatable liferferfatable lifferferfefatable liferffferfatatable liferferffatable liferferfatable liferferffatable inferferferfatable ferferferf