产品概述该产品为伞齿轮驱动，操作轻松灵活，常用于较大口径或较高压力场合人工手动操作。公称通径Nominalthroughdiameter506580100125150200高度Height370400440510580690800公称通径Nominalthroughdiameter250300350400450500600高度Height960120013601550170019002400)