Endless V- Belt [ Precision built belt ] ha [ Endless V- Belt [ Precision built belt ] having polyester cord reinforcement and neo- prene Jacket with oil resistance and anti- static low stretch properties in size C- 122 conforming to RDSO Specn. No RDSO/ PE/ SPEC/ AC/ 0059- 2004 [ REV- 0 ] With Amendment NO. 1, or Latest which incorporates temperature aging and accelerated aging test and others additional physical parameter, with only 2 successive grading Nos. in a matched set of 12 belts and the grading Nos falling within the range of 49 to 51 all the same Nos. in each set. Maximum permissible ash content of 5 %. Parameter tested as per IS: 3400 Part- 22. ]