Constant supply of gold is a professional expansion joints, expansion joints Series manufacturers, provide a variety of limit expansion joints, single flange limited telescopic joint, clamp-type flexible expansion joints, flange limited telescopic joint stand, double flange limit bit expansion joints, flange loose set of expansion joints, expansion joints loose gland-type expansion joints, etc. The main products are: SSJB type of gland-type expansion joints, VSSJA type flange expansion joints, VSSJA-1 single-flange limit expansion joints, VSSJA-2 dual flange limited telescopic joint, VSSJA-3-type gland limit telescopic joints, VSSJA-2 type (spheroidal graphite) limit double flanged expansion joints, flexible expansion joints sewage filter . VSSJA-1-type flange limit expansion joints used in the side of the flange connection, side and pipe welding; VSSJA-2-type double half-lan limit expansion joints are suitable for both sides of the flange; VSSJA-3-type gland limit telescopic joints on both sides of the pipeline used in welding. Products are assembled in the factory, only the product side and the pipe flange connection is good, even the screw on the corner next to the gland nut, then adjust limit nuts. In the test pressure, the pipe should be fixed on both sides of product, to prevent the products are great products axial damage tolerance. For petroleum, mining, chemical, municipal, construction, metallurgy and various media are negative pressure industrial pipe.