ISO250 不锈钢真空支架密封 中心环套装
Centering Ring LF-250 Vacuum Fittings, Stainless Steel with Viton® O-Ring and Aluminum Spacer Ring ISO-LF Flange Size: NW-250 Common Dimensions: A= 10.14 inch (258 mm) B= 0.15 inch (4 mm)
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