Recently, our company received a letter of appreciation from xx company in South America, and hereby thank our company for the design and construction of 40 tons/day of solid sodium silicate production line. The letter of appreciation is as follows.
Recently, our company received a letter of appreciation from xx company in South America, and hereby thank our company for the design and construction of 40 tons/day of solid sodium silicate production line. The letter of appreciation is as follows.