ariaturbine.comariaturbine.com/catalogue/valves/Butterfly-Fabricated-Steel.pdf · NBR or EPDM X20...
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ariaturbine.comariaturbine.com/catalogue/valves/Butterfly-Fabricated-Steel.pdf · NBR or EPDM X20 Cri3 ST 37-2 orST52-3 Screw Pointer Hand wheel Main Gearbox Worm Gear Worm Bod /Cover