Email format error
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Email format error
Email cannot be empty
Email does not exist
6-20 characters(letters plus numbers only)
The password is inconsistent
The oil control ring is installed in one of the carrier's outer grooves. When installing the two-part oil control ring, be sure to pay attention to the position of the helical expander. The end of the helical expander must always be opposite the ring joint.
Piston rings are metal rings that are embedded in the grooves of the piston. The piston creates a seal to keep combustion gases and oil in the engine. Compression rings are used to compress the mixture inside the combustion chamber, while oil rings scrape excess oil from the cylinder.