Tender For corrigendum : supply of pneumatically actuated ball valves b b -1600669833 valve ball val 25 m 800 sock astm a1 , 1600669834 valve ball val 25 m class 800 thre astm , 1600669844 valve ball val 15 m class 800 flan astm , 1600669843 valve ball val 15 m class 800 nipp astm , 1600669842 valve ball val 50 m class 150 flan astm , 1600669841 valve ball val 50 m flan astm a2 , 1600669840 valve ball val 65 m class 150 flan astm , 1600669839 valve ball val 80 m class 150 flan astm , 1600669838 valve ball val 100 class 150 flan astm , 1600669837 valve ball val 100 class 150 flan ball , 1600669836 valve ball val 150 class 150 flan astm , 1600669832 valve ball val 200 class 300 flan astm