Our's MTZ D/valve for 50, 60, 70, 80 1 use high qulity material 2 have long useful life 3 shorter delivery 4.have stock Our's MTZ D/valve have long useful life and we sale it to many countriesWe promise to show you a shorter delivery with lower price we have stock!The type is 50, 60 , 70 , 80 D/valve