Welltronics Technology Limited is a manufacturing company for PCB related instrument and machinery sparts & consumables, we are located in China most famous manufacturing city--Dongguan city ,which is in the middle of Shenzhen and Guangzhou, good place help us to win a lot of chance to treat our customers all over the world. We deal with different type of sponge rollers, from normal industrial sponge to high-end sponge for wafer and semiconductor. At the same time, we provide instrument and machinery spare parts as well as consumable related PCB and electronic industry. Hope we will get a win-win situation during cooperation, Welcome to contact us and support us.