| http://www.w3.org/ns/prov#value | - The container body 14 is made by using a sheet blank including a polyethylene-terephthalate crystallized by heat treatment, i.e., a polyethylene-terephthalate layer including a crystallization promoting nucleus, and manufactured by heat formation so that the degree of crystallization of the polyethylene-terephthalate becomes 10 to 40%.
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