Zhengzhou high tech Zone, China[email protected]
FIG. 3 is a view in perspective of a portion of a spiral chute manufactured by the brake method of manufacture. FIG. 4 is a view in perspective of one section of a spiral chute employing in the cakepan method. FIG. 5 is a plan view of a portion of a spiral slide as cut from a fiat sheet preparatory to forming.
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