Overallead Industry Development (Guangdong) Co., Ltd. is authorized by the American enterprise Overallead Corporation to produce and sell related products in China. Our company is committed to the research and development, production and sales of pneumatic diaphragm pump, metering pump, water quality monitoring instrument and complete medicinal equipment. Our company and products have passed IS09001, CE, FDA and other certifications, providing reliable and efficient fluid management product to customer worldwide.