The most common, the plate-and-frame press, contains caulked , metal septa and a recessed cake space.

最普板框式过滤机，有可填充、金属隔片和凹显空滤饼。

This has the advantage of no ugly caulked seams to mildew or open up, no mica to loosen.

这样做好处没有丑陋caulked接缝，以白粉病，没有云母出现松动迹象。