Email format error
Email cannot be empty
Email already exists
6-20 characters(letters plus numbers only)
The password is inconsistent
Email format error
Email cannot be empty
Email does not exist
6-20 characters(letters plus numbers only)
The password is inconsistent
ADJUSTABLE
Side adjustment +3mm
Depth adjustment +3mm
HIGH TOUGHNESS SPRING
Structural design of the segment
force spring, not easy to break.