Method of specifying general purpose polypropylene and propylene copolymer materials for moulding and extrusion / 
British Standards Institution 
 - 12 leaves :  illustrations ;   33 cm. 
 - British standard ;  BS 5139 : 1991 .
 - British standard ;  BS 5139 : 1991 .
<br/><br/><label>ISBN: </label>0580191796 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Designations.<br/>Copolymers.<br/>Moulding (process).