Powell Valves 3/8"to 3" 闸阀（Rising Stem, Rolled-In Seat Rings）Class 200-300 Powell Valves 3/8“ to 3" Gate Valves 图片

Powell Valves 3/8"to 3" 闸阀（... 江苏弗里森流体工程技术有限公司

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