1. Ingring sealing polyurethanekudu duwe kinerja panyegelan sing apik ing tekanan kerja lan kisaran suhu tartamtu, lan kanthi otomatis bisa nambah kinerja panyegelan nalika tekanan mundhak. 2. Gesekan ing antarane piranti dering panyegelan poliuretan lan bagean sing obah kudu sithik, lan koefisien gesekan kudu stabil.
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