Hardware spring door shake handshandle collocation is a class

by:DIgao     2020-07-23
Metal polishing base has been implemented, address: AngYi fishing cross the village ( Wood group for land) Polishing machine number 800, now the relevant matters: - ->
metal shake handshandle collocation class place cartridge door
to play the door was buried gate shaft spring or built-in vertical floor spring, door leaf can be inside and outside the free open, don't touch the door leaf in the closed position. To play the door is a common door decoration engineering, both inside and outside is free to open a door.

this is hardware spring door shake handshandle collocation is a class.
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