Hi Grade (H. K.) Ltd. Is one of the top soldering flux manufacturers in the world. Hi Grade Hong Kong carries out its role as R& D, research and develop new kind of fluxes for electronic assemblies and printed circuit board manufacturing. <br/>The sales of the products are through our agents. They are located world wide. The product catalogue is on our web, it describes products' information in details for our customers in different trades. <br/>The quality of our products is self implied as its name 'Hi Grade'. Reputable appreciation has been received from major manufacturers all over the world. <br/>As soldering problems are tricky, When customers need our help to solve them, if cases that can not be resolved locally, we can discuss the case with our colleague internationally, support through the internet to solve the problem from our group engineers.