ASTM A709 Grade 50W equal grade are EN10155 :S355K2G1W,NFA 35-502,E 36 WB 4 .A709 Grade 50W is the specification used for steel plate used in the manufacture of bridges.
LUYANGWOOL® CERAMIC FIBER BULK / Refractory Ceramic FibersLuyangwool® ceramic fiber bulk is manufactured from high purity alumina-silica materials through spinning operation or blowing operation. These fibers can be further modified by chopping. In additi