Chekutanga, maitiro: 1, High simba, yakakwirira toughness, yakakwirira zvinokambaira kuramba, yakakwirira torque: kushanda pombi Fittings, majoini, vharafu miviri, etc. nedzimwe shinda dzomukati kuti rutsigiro uye dziviriro.2, High tembiricha kuramba, hydrolysis kuramba, UV kuramba: zvokurapa midziyo ...
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