About Us Foshan Gaoxiong Special Abrasive & Grinding Tools Co., Ltd. is located at Nanzhuang Town, Foshan City, Guangdong, the pottery capital of South China, the so-called first town of building pottery in China. It is the only producer specialized in research of green silicon carbide micropowder in piezoelectric crystal industry. The products are made with advanced Japanese process and based on Japan (JIS) standard as well as process requirements from customers. It has established QB110-9