Precision Moulds & Dies manufactures Polypropylene Made Lightweight Kiln Jars. Precision Moulds & Dies is an ISO 9001:2008 certified company. The Company also manufactures various types of fully hardened injection moulding moulds and plastic products. The Polypropylene Made Lightweight Kiln Jars has lid in gloss and body in matt finish. The Polypropylene Made Lightweight Kiln Jars has hinge made of polypropylene and polystyrene. These Kiln Jars are also made of polyethylene.