In the hot summer, Xinkunyuan's environmental protection work is still efficient. This is not the case. Another batch of sludge drying machines is about to be shipped. This time, according to customer requirements, a SDR-20 sludge drying equipment has been specially built for customers using the principle of low-temperature heat pump. It has now been shipped! Xinkunyuan Environmental Protection As a company that specializes in developing and manufacturing sludge drying machines and waste liquid reduction machines, it adheres to the principle of "using