1, Spayshak focuses on steam system, and has been providing the best service and products to steam users all over the world with the most professional engineering technology, thus rapidly and significantly improving equipment performance and system efficiency and saving energy.

2. Armstrong is mainly engaged in the floor business, with a full range of products such as elastic coils, plates, carpets, rubber floors and wall materials, and has been deeply involved in many professional fields such as medical care, education, office, pension, pharmacy, hotels and transportation.

3.Spazak valves are more professional and of better quality. Armstrong valve is one of many products, so Spazak is very expensive.