JF3-2H-4.8x19-E14 collated Self-drilling Screws Side lap stitching of profiled steel / aluminium sheets and sandwich panels
JF3-2H-4.8 Self-drilling Screws Side lap stitching of profiled steel / aluminium sheets and sandwich panels
JT3-6-5.5 Solar self-drilling screws Profiled steel/alu sheets and sandwich panels to steel substructure