Wai Ying Development Ltd. is an engineering trading company specialized in the supplies of engineering products for use in civil and building projects. The ranges of products embody water pumps, hose and piping and a wide spectrum of plastic welding machines and the associated heat process equipments. Our company has been in operation since 2011 and has been growing fast. We have established the presence of our various products in many prestigious government and civil projects in Hong Kong, ...