Hangzhou Huawei building materials company(Hangzhou Ray Concrete Admixture Inc.) has passed ISO9001: 20000 international quality system certification, we are the Chinese concrete admixtures association member, the Shanghai concrete admixtures association member and Zhejiang Chemical Building Materials Association member.we are specialized in manufacturing and developing concrete admixtures. With the production capacity of 40, 000 metric tons of naphthalene-based superplasticizer per year.

Our HW series of concrete admixtures is have best performance in concrete and cement products, they are widely used in construction, bridge, road, tunnel, port, water conservancy and hydropower project. They can reduce water and can increase strength of concrete, can speeding up the project process, economize of cement and can improve the mortar and concreteâ€™s plasticity, workability, compressive strength, etc.and has obvious early strong results. At the same time, it have better adaptability for the cement, no corrosion of the steel, and has better economic benefits. This years, with its reliable quality, excellent performance, has won recognition and trust of users.

Since the factory has been operation, our the quality, price and after-sales service are have a high reputation in the market, the user has been cover with China and foreign country.

Our the spirit of "Quality is the first, customers are the first".we can provide technology support, and can help customers to solve the problems. we hope, we can bring the best economic benefits to our customers.