Cast iron clamp with screw to fasten the apparatus to rostrum edges at will for demonstration.
支架采用铸铁浇铸成型，下面配有紧固十字螺钉，可任意紧固在讲台上，进行演示。
Mesh and columns by screws and all kinds of special plastic or iron clamp connections, all are automatic anti-theft screws to.
网片和立柱靠螺丝和各类特殊的塑料或铁的卡子连接、所有的螺丝均为自动防盗的。
The ductile iron baseplate shall permit to set up the clip or the clamp on the concrete sleeper.
延性铁基板应便于在混凝土轨枕上设置夹具。
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