(57) Abstract Objective While assuring the light weight conversion of the pressure container, gurasurainiIt designates that it tries to be able to obstruct the damage generation of ngu as purposeru. Constitution The pressure container which administers the glass lining to the inner skinBeing the nozzle which is provided in the wall surface of 1, nozzle body 5At least in the basic destal inside margin, the internal pressure to drive to aforementioned pressure container 1It is higher than the peak stress operation to the said basic destal inside margin withThe stiffener 4 which consists of the material which possesses yield stress being providedru thing is featured.
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