supply of duplex check valve 1.5 +/-(plus-minus) 0.12 kg./ cm2 pressure setting for air spring suspension system of emus. rdsos specn. no. c-k-407 (rev.-04) of march2023duplex check valve 1.5 +/-(plus-minus) 0.12 kg./ cm2 pressure setting for air spring suspension system of emus. rdsos specn. no. c-k-407 (rev.-04) of march2023,duplex check valve 1.5 +/-(plus-minus) 0.12 kg./ cm2 pressure setting for air spring suspension system of emus. rdsos specn. no. c-k-407 (rev.-04) of march2023 [ warranty period : 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]