Model:YINJI
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cylinder head:
1.Hardness is more than HRB90.
2.Smooth in appearance.
3.Excellent heat dissipation.
4.Adaptable model: JH70.

cylinder head:
1.Hardness is more than HRB90.
2.Smooth in appearance.
3.Excellent heat dissipation.
4.Adaptable model: JH70.


