Dongguan City Yuhuang Electronic Technology Co., Ltd. is the perfect company for custom parts! They exceeded our expectations in product quality and speed of production! We needed some very precise aluminum dowel pins and they did a perfect job! Their engineers are excellent and were able to make specific changes we needed! Raina was the best part of working with this company...her communication was perfect, she got us the pricing we needed and she kept us involved during the entire production process. Hopefully by reading this, you will know that this manufacturer exceeded our expectations and we will be using them for all future projects...we highly recommend them.