Ball bearing low speed= Ball bearing contra angle+ball bearing air motor+straight handpiece
1. External water, key style;
Low speed full set(ball bearing)
1. Ball bearing for contra angle and air motor both, using time increase 30% comparing slide cartridge style.
We have made the test with 3 suppliers of contra angle:
A supplie- the contra angle: use for 2 weeks, finish
B supplier- use for 2 months, finish
Lingchen-- till now use for 6 moths, still keep working
Lingchen dental Low speed dental handpiece full set(ball bearing) al handpiece se china)
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