The seat is field replaceable without any special tools or equipment.
不需要任何特殊工具或设备即可现场更换阀座。
The blade is hardened to maintain a long lasting sharp edge and is easily field replaceable.
刀片性能高，可保持长期的锋利边缘，现场更换简便。
The blade is hardened to maintain a long lasting sharp edge and is easily field replaceable.
刀片性能高，可保持长期的锋利边缘，现场更换简便。
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