Dongying Changsheng Import & Export Co. Ltd. is located in the beautiful and richly-endowed Yellow River Delta – Dong Ying City. It is a specialized import & export enterprise integrating R&D and foreign trade, and manufactures products of different materials like stainless steel, heat resistant steel, alloy steel, carbon steel, etc. Using advanced silica sol technology. The monthly yield is up to over 50 tons. Meanwhile, we are capable of performing heat treatment, machining, electrolytic polishing, mirror polishing, etc. On precision castings. Being equipped with a first-class technical team and superior process R&D ability, we can strictly control the quality of casting products according to a wide variety of customer needs. We always take customer satisfaction as our criterion and customer delight as our goal, and strive to...