线隙式吸油滤油器SPN系列（滤油网）型号参考流量L/min过滤精度u重量SFN-04351500.24SFN-06460.26SFN-08900.390.45SFN-101500.73SFN-122050.97SFN-163201.24SFN-205502.5SFN-246002.55)