• sino-foreign joint venture ningbo gongyao sealing materials co., ltd

    cixi city, Ningbo, Zhejiang, China,315300

    Our company established in 1965, mainly produced sealing gland packing, asbestos products, fiberglass carbon fiber ceramic fiberproducts, expanded graphite and PTFE products , ect., we are one of the biggest fireproof, heat insulation materials ...