(57) Abstract Objective To be safe making use of the lead which is poisonous, production easySo the weight for the curtain which is obtained cheaply is offered. Constitution Canning steel weight itself 2 with canning body 3. SufferingCover 3 constitutes, junction the canning component 5 of pair. CanningComponent 5, with the thermoplasticity synthetic resin make, almost half of computer 2The hollow 4 which it stores and, it has with the junction piece 6 around that. Suffering component 5, heating forming the sheet 7 of the synthetic resin make producesru. To prepare 2 sheets 7 which possess hollow 4, the hollow 4 1To insert computer 2 and be packed, to repeat other sheet 7 to this, thatIt inserts the semi- section which computer 2 extends to hollow 4 and is packed. This stateSo, after welding around hollow 4, leaving junction piece 6, it disconnectsIt does, obtains the weight 1 for the curtain. As for this weight 1, curtainInterposing locking in the sill, you use. Is computer 2 steel?And others, being cheap, there is no virulence like the lead being safe, handling permitting/insertingIt is divination. Because it is enclosed into canning body 3, the rust occurringThe zu, 10,001 occurring, the blotch it does not come out in the curtain.
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