supply of ball screw assembly , ball screw assembly to rwf drawing no.705430110320 for cnc grinding mac hine (op-40) b shop use in movement of wheel heads (x-axis) 1)warranty period: warranty of 1 8 months from the date of delivery or 12 months from date of fitment or use whichever is early. 2)mat erial test certificate (mtc) from nabl accredited laboratories for chemical composition / physical prop erties should be submitted along with the material supply. 3)inspection certificate issued by manufact urers to be submitted along with supply. 4) only ball screw manufacturers to quote. p.o.copies or cre dentials for supplying similar item to psus or govt agencies to be submitted along with supply. [ war ranty period: 18 months after the date of delivery ] ]