Twist test: L30 R30, remove only 2.6 MM from 200.-
right roll 30 roll around 30 laps . Using the micro-dust, there are no pwat sakho, no crack, no plug watch out eyes outside the color must not change. , No rust
Twist test: L30, R30 out 200 times from the 2.6 MM. rolls left around 30 rolls right around 30 Microscopes measure, no dust, no crack, no dots per line. viewed from the eyes Exterior Color not change, no rust.
Twist test: L30 R30 took 200 as, from the late 2.6 MM.
roll roll left 30 around right 30 around Use the microscope measuring line, no dust, no cracking, no joint line from external sight color must be changed, no rust