tender for rubber kit for 03 piece design 1-1/4 inch bp/fp angle cock as per ref.7,8&12 of s.c.rly drg. no.c/els/lgd/pn.eqpt/3/54. set consisting of 03 items. 1) flange as per ref. no.7= 02 nos. 2) valve seat as perref. no. 8= 02 nos. 3) o ring as per ref no. 12= 01 no.