... Brass Tube Products (tubular rivets,needle tube, pin connector) etc. The characteristics of our products are high ... are widely used in precise instrument, electronicequipment, pin connector, pen, mechanical device etc.Especially our Brass Tubular ... Breaker, Circuit PatternPlate, Antenna, Electric Brush, Antenna, Electric Brush, etc. Copper Bushing/sleeve/metal pin bushing for precise instruments,etc