cationic polyacrylamide flocculant
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The production of dry polyacrylamide typically involves the polymerization of acrylamide monomers. This can be achieved through various methods, including free radical polymerization, which requires initiators and can occur in aqueous or non-aqueous environments. Once polymerized, the product is often dried, which results in the formation of dry polyacrylamide granules. The drying process is essential to ensure that the polymer retains its effectiveness when reconstituted with water for use in various applications.
dry polyacrylamide...
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JTEKT provides special seals for use in a wide variety of machines and applications.
Table 5 lists the major special seals, their shapes, and their features.
The spring shown in the figure is known as a garter spring, and it maintains tension on the sealing lip of the seal. Garter springs are closed coil springs used in the form of a ring, the ends of which are connected together as shown in Figure 2.10.
Installation tips for oil seals
Oil seals for steel production equipment

oil tank gasket.
An oil seal consists of:
Figure 7: Oil seals for steel production equipment (rolling mill)