lug style butterfly valve这个是哪种蝶阀啊
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lugstylebutterflyvalve这个是哪种蝶阀啊lugstylebutterflyvalve这个是哪种蝶阀啊lugstylebutterflyvalve这个是哪种蝶阀啊片式蝶阀
lug style butterfly valve这个是哪种蝶阀啊
lug style butterfly valve这个是哪种蝶阀啊
lug style butterfly valve这个是哪种蝶阀啊
片式蝶阀
lug style butterfly valve这个是哪种蝶阀啊
lug
butterfly
Butterfly
英语翻译Rovalve Figure SB1700,2” thru 24”Bonnetless,knife gate valve,150 psi design for 150 psi CWP,cast stainless steel two-piece bolted-body with lug style port flanges standard with bolts holes drilled and tapped to ANSIB16.5/150,but capab
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