通过中商114认证 
Material Composition of Expansion Joints:
The expansion joint device for buildings is composed of aluminum alloy profiles, aluminum alloy plates (or stainless steel plates), rubber strips, and various types of seals.
2) Configuring waterstop, firestop, and insulation strips within building expansion joints can also ensure that the joints meet design requirements for waterproofing, fireproofing, and insulation. The waterstop is made of 1.5mm thick EPDM rubber sheet material, capable of long-term use in sunny, humid, and cold natural environments. When connection is needed along the length, it can be bonded with lap adhesive. The firestop is a component consisting of two stainless steel liners sandwiching a silica-alumina refractory fiber felt, with the sides of the firestop secured to the main structure.
