2019-11-15
→PCBA board surface tin bead size acceptable standard
Acceptable standard for tin beads: 1. The diameter of tin beads shall not exceed 0.13mm 2. The number of tin beads with a diameter of 0.05mm to 0.13mm within the range of 600mm2 shall not exceed 5 (s
2019-11-15
→Tianjin Zhengyi technology co., LTD
Tianjin Zhengyi technology co., LTD is located in the port city of tianjin, we are committed to manufacturing and electronic products matching parts, including PCB design, PCB, components act as purch
2019-11-15
→Tianjin Zhengyi technology co., LTD
Tianjin Zhengyi technology co., LTD is located in the port city of tianjin, we are committed to manufacturing and electronic products matching parts, including PCB design, PCB, components act as purch