Italiano: Fasce elastiche di tenuta, nelle diverse configurazioni:
A) Rettangolari
B) Faccia a botte
C) Trapezoidale
D) Twist torsionale
E) Faccia rastremata
F) Dykes o "a L"
Le quali si differenziano anche per il tipo di fermo fascia:
Y) Dietrofascia
X) Sopra o sottofascia
Oppure per le estremità che lavorano senza fermi fascia:
K) Gradino
J) Obliquo
W) Obliquo con gradino (ne esistono diverse varianti)
English: Piston ring, in different configurations:
A) Rectangular section
B) Barrel face
C) keystone
D) Torsional twist
E) Taper face
F) Dykes
Which also differ for the type of retainer band:
Y) Behind-band
X) Above or under-band
Or for the ends that work without firm stops:
K) Step
J) Oblique
W) Oblique with step (there are several variations)
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