About: http://webisa.webdatacommons.org/4929241

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Cutting and drilling such sheets require only very simple tools, such as hammer and saw.The bitumen-impregnated cellulose fiber sheets are thus very widely used in the field of construction and renovation.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com