Self-tapping Screw-Thread Rolling
Pan head cross groove triangular tooth screw၊ ပန်ဦးခေါင်း plum blossom groove triangular tooth screw၊ Hexagonal cross groove triangular tooth screw၊ countersunk cross groove triangular tooth screw၊ countersunk plum blossom groove triangular tooth screw၊ Hexagonal flange triangular tooth screw။
ပိုပြီးဖတ်ပါ