supply of heavy duty air cylinder , heavy duty air cylinder to size 6 bore, 10 stroke, 1 3/8 rod dia, both ends cus hioned, cap fixed clevis mount, rod end female thread to size 1 14 tpi with removal stud to m/s parker model no 6cbb2aluv19ac10 or exactly similar. note: (1)piston rod and gland se als shall be of m/s parkar make only. (2) documentary evidence shall be furnished along wit h the supply for having procured seals and gland from m/s parker or their authorised dea lers. (3)firm should furnish inspection / test certificate along with the supply. (4) firm shou ld furnish warranty / guarantee certificate for their product for a period of 18 months fr om the date of delivery or 12 months from date of fitment whichever is earlier. [ warranty period: 18 months after the date of delivery ] ]