hat
Sentetik, ki pa-trikote konstriksyon bay omwen 600% (sa vle di 7 fwa) pi gwo fòs dlo pase estanda # 30 santi yo. (Trapezoidal chire tès fòs pou chak ASTM D4533)
eng
Synthetic, non-woven construction provides at least 600% (i.e. 7 times) greater tear strength than standard #30 felt. (Trapezoidal tear strength testing per ASTM D4533)