Guan Long was established on 1993, specializing in the production of regular industrial processed parts, supplying in European standard. IDF and American 3A standard for sanitary fittings factories/companies worldwide.

As Guan Long always emphasizes on providing best quality products with prompt delivery. honest and trustworthy to extend good serice to customers, their excellent products not only has successfully eamed the prominent appraisal and credibility but also expanded to the technical expertise of professional domain.