Ningbo TianYi Chemical Industrial(T.C.I) Co., ltd is a manufacturer and exporter We are mainly engaged in ... in the fields of metallurgy, petrochemical industry, electric power, energy, communications, chemical industry, construction, cement industry, and urban heating system, etc ... our website, thank you. Best regards, Ningbo T.C.I CO., LTD www.ptfeexpansionjoints.com