supply of set of progressive ring and union nut , set of progressive ring and union nut required for single ferrule fittings in lhb coaches. 1. p rogressive ring conforming to ermeto dpr22lx or equivalent and to rcf drawing no. lw36189, ite m-26, alt.- g/nil. qty.- 01 nos/set. 2. union nut conforming to ermeto m22lcfx or equivalent and to r cf drawing no. lw36189, item-27, alt.- g/nil. qty.- 01 nos/set. 3. progressive ring conforming to erme to or equivalent (for equal elbow w18lcf to rcf drawing no. lw36136, item-56,alt.- c/nil). qty.- 01 nos/set. 4. union nut conforming to ermeto or equivalent (for equal elbow w18lcf to rcf drawin g no. lw36136, item-56,alt.- c/nil). qty.- 01 nos/set. 5. progressive ring conforming to ermeto or eq uivalent (for equal tee t28lcf to rcf drawing no. lw36136, item-50,alt.- c/nil). qty.- 01 nos/set. 6. un ion nut conforming to ermeto or equivalent (for equal tee t28lcf to rcf drawing no. lw36136, ite m-50,alt.- c/nil). qty.- 01 nos/set. 7. progressive ring conforming to ermeto or equivalent (for equ al tee t10lcf to rcf drawing no. lw36136, item-53,alt.- c/nil). qty.- 01 nos/set. 8. union nut conformin g to ermeto or equivalent (for equal tee t10lcf to rcf drawing no. lw36136, item-53,alt.- c/nil). qt y.- 01 nos/set. [ warranty period: 30 months after the date of delivery ] ]