Supply of hot-inlaying power, diamond spray polishing agent, polishing cloth, abrasive paper

 Supply of SCR, KP500A spiral one-way thyristor, bolt SCR

 Supply of Schneider golden phone and computer socket, Clipsal switch socket

 Supply of abrasive cloth and abrasive belt

 Supply of food-grade environmental silica gel

 Supply of diamond stone mill

 Supply of stainless steel refiner, cleaning agent

 Anaerobic adhesive, screw adhesive

 Toshiba TLP114A (TPL,F) high speed optocoupler

 Supply of SYJ trunk circuit connector with wire contact terminal