about Putzmeister concrete pump S valve , SDBL company usually have DN180/DN200/DN230 these sizes
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Putzmeister S valve
about putzmeister concrete pump S valve , SDBL company have DN200 and DN230 two kinds of valves in wear parts warehouse.
Material: Natural Rubber And Polyurethane, Application: Used With S Valve/outer Housing/small End Assy