Lisebelisoa tsa mantlha tsa li-casters ke life? Lisebelisoa tsa mantlha tsa li-casters ke life? Polyurethane, tšepe e entsoeng ka tšepe le tšepe e entsoeng ka tšepe, lebili la rabara ea nitrile (NBR), rabara ea nitrile, lebili la rabara ea tlhaho, lebili la silicone fluororubber, lebili la rabara ea chloroprene, lebili la rabara ea butyl, rabara ea silicone (SILICOME), EPDM rub ...
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