... Drive-by-wire and hand-hold controller,(according to requests)1.1.3Chief technical parameter- structure:Bridge- size(X×Y):1300mm ... head, water switch,abrasive meter, sand valve and sand feeding bin.2.1 Integrative abrasive cutting headThe cutting efficiency of ... imprted from USA,such as check valve body ,high pressure cylinder ,check valve repair kit ,on/off valve repair kit, seals etc. (AccuStream)- ...