The NC boring lathe equipped with this kind of deformable arm can bore special shaped pinhole for piston efficiently, and meanwhile meet the demand of micro meter accuracy.
装有这种新型变形镗杆的NC镗床能高效地镗削活塞异形销孔，并达到微米精度的要求。
2
The NC boring machine equipped with this kind of deformable bar can bore special-shaped pinhole in piston efficiently, and meanwhile meet the demand of micro-meter accuracy.
装有这种新型变形镗杆的NC镗床能高效地镗削活塞异形销孔，并达到微米精度的要求。
3
It proposes measures of improving piston structure design and adopts the structure of cast aluminum bronze embedded in the hole in the pistonpin bushing.