70 Piston ring outer diameter is about 74mm / 2.9in,piston ring inner diameter is about 66mm / 2.6in and the number 70 means that the cylinder diameter is 70mm.
¡¾Replacement parts¡¿Standard production and fine craftsmanship, easy to install and disassemble.
¡¾Service¡¿Any installation or use of , feel to us and we will offer the best service to you. For more info, just send us an email.
Piston ring is made of high quality material, , the air tightness of the piston and the cylinder wall is good.
Made of high quality material, , the air tightness of the piston and the cylinder wall is good
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