The oil surface is hard and sticky, and this shape can only be rubbed by hand, and the vertical cylinder is also rubbed by hand. This Siebel seems to have a cabinet operation, so it should be visible.

If it is in the shape of noodles, it can be pressed out by a machine, but the taste of the machine is not as good as that of hand-rubbed, so it gives the impression that Xibei's noodles are also hand-rubbed.