The main materials for building expansion joints include aluminum alloy, stainless steel, galvanized steel, and rubber. From both price and quality perspectives, the majority of building expansion joints currently still primarily opt for aluminum alloy and stainless steel, mainly including types 201 and 304.

Building expansion joint devices mainly consist of covers,Waterstop, firestop, base, slide rod, and other components, select according to the specific usage part.

Building expansion joint devices are mainly categorized into series such as floor expansion joints in buildings, interior wall ceiling expansion joints, exterior wall expansion joints, and roof expansion joints, based on their usage locations.