LUYUAN is a manufacturer of full range of ductile iron grooved couplings and fittings.
Having the world's most advanced shaping system "DISA 3", exporting grooved piping products to more than 70 countries worldwide.
Available in painted or galvanized finish. UL, cULus Listed and FM, CE Approved for use in systems up to 300 - 500 psi pressure.