The difference between RO reverse osmosis membrane and ultrafiltration membrane

The difference between RO reverse osmosis membrane and ultrafiltration membrane   First, the reverse osmosis membrane (RO membrane): RO is the abbreviation of Reverse Osmosis membrane in English. Chinese means (reverse osmosis). Generally, the flow of water is from low concentration to high concentration. Once water is pressurized, it will flow from high concentration to […]

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Causes of sewing machine jumper

Jumping is a phenomenon in which stitches cannot be formed continuously because the hook at the bottom of the machine cannot pick up the upper thread or the upper thread slips off after being hooked during the stitching process of the sewing machine. This is mainly caused by the mismatch between the movement time or […]

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