Assertion: blasting cap | /r/HasProperty | provided with a pre-pelleted base charge
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Source sentences:
text: An electric blasting cap having a case of organic plastic material comprising about 6 parts of polyvinyl chloride, 2 parts of a copolymer of butadiene and acrylonitrile, 1 part of non-polymeric plasticizer and 1 part of mineral filler, said blasting cap being provided with a pre-pelleted base charge, an initiator charge of lead azide pressed to a density of about 2.3 grn./cc., and an unpressed ignition charge.