bonnetless

bonnetless

 英

  • 網絡無閥帽;無閥蓋

例句

Stainless Steel, Bonnetless, Flanged Knife gate Valves.

不銹鋼法蘭閘閥

Forged High Pressure Bonnetless Y-Pattern Globe Valves

鍛造高壓Y截止

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