supply of (1) 15mm equal male female elbow of table 15 of is 1239:1988(2) 20mm equal male female elbow of table 15 of is 1239:1988(3) 25mm equal male female elbow of table 15 of is 1239 : 1988(4) 40mm equal elbow male female of table 15 of is 1239 : 1988 , 15mm equal male female elbow of table 15 of is 1239:1988 [ warranty period: 30 months after the date of delivery ] ] , 20mm equal male female elbow of table 15 of is 1239:1988 [ warranty period: 30 months after the date of delivery ] ] , 25mm equal male female elbow of table 15 of is 1239 : 1988 [ warranty period: 30 month s after the date of delivery ] ] , 40mm equal elbow male female of table 15 of is 1239 : 1988 [ warranty period: 30 month s after the date of delivery ] ]