Silvery Dragon Prestressed Materials Co., Ltd. engages in the research, development, production and sales of prestressed concrete steel bars, wires, and strands. Its products include spiral rib prestressed concrete (PC) wire, prestressed concrete cylinder pipe (PCCP) wire, plane surface prestressed concrete (PC) steel, indented prestressed concrete (PC) wire, polyethylene (PE) strand polyethylene (PE) zinc coated, and galvanized prestressed concrete (PC) wire. The company was founded in 1978 and is headquartered in Tianjin, China.