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床戏视频超长吻戏大全

Pneumatic type ball valve


Said: pneumatic fixed ball valve
Model number: Q647 {F, N, P}
Size: DN15-400
Pressure: GBPN1.6, 2.5, 4.0 Mpa, ANSI class150, 300, JIS10K, 20 k
The valve body material: WCB, CF8, CF8M,
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