mini U groove bearing with inner diameter 3mm ,outer diameter 10mm ,and total height 4mm ,can used for Wire Cable Pulley Bearing ,free sample can be provide for you in advance .
JNTECH energy storage battery pack can replace the traditional lead-acid battery perfectly, and can
exchange information with various types of solar energy storage PCS, widely used for off-grid,
grid-tie and other solar energy storage systems; used for outdoor lighting, emergency or temporary
electricity needed, field working, also for family standby power.
