supply of ball screw assemblyball screw assembly,ball screw assembly to rwf drawing no 715400210920 for station-2/cnc ro ughing machines use in z-axis movement of longitudinal carriage. special conditions: 1. wa rranty period: warranty of 18 months from the date of delivery or 12 months from date of fitment or u se whichever is early. 2.material test certificate (mtc) from nabl accredited laboratories for chemical composition / physical properties should be submitted along with the material supply. 3.inspection cer tificate issued by manufacturers to be submitted along with supply. 4.only ball screw manufacturers t o quote. p.o copies or credentials for supplying similar item to psus or govt. agencies to be submitte d along with supply. [ warranty period: 18 months after the date of delivery ] ]