supply of heavy duty air cylinder , heavy duty air cylinder to size 8 bore, 3 stroke, 1 3/8 rod dia, both ends cushi oned, intermediate fixed trunnion mount, rod end short male thread to size 1 - 14 tpi. note : 1. piston and gland seals shall be made of viton material of m/s parker make only. 2.docum entary evidence shall be furnished along with the supply for having procured seals & glan d from m/s parker or their authorised dealers. 3.firm should furnish inspection /test certif icate along with the supply. 4. firm should furnish warranty certificate for their product. [ warranty period: 30 months after the date of delivery ] ]