What is hardware shake handshandle installation tapping screw?
Metal polishing base has been implemented, address: AngYi fishing cross the village ( Wood group for land) Polishing machine number 800, now the relevant matters: - - >
installed hardware handles self tapping screw is generally fingertips head, coarse thread, a hard wood screw, there are aluminum alloy, plastic. Used for a special metal hole open thread tapping screw is called tap.
self-tapping screws used for metal, nonmetal or softer without a bottom hole and tapping. Self tapping screw is pointed, such ability & quot; Tapping & quot; ; Ordinary screw is flat, the thickness is consistent.
self tapping screw is said: drill hole for without tapping hole, using different screws and general, head is sharp, tooth pitch is bigger, and a chipless silk attack is a bit like, you can not tapping screw directly into, metal and plastic often use this method.
this is metal shake handshandle installation tapping screw is introduced.
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Load it with a card, turn it off for travel and open it to show your card in both sections
Put the same card in two parts or show two different cards!
My challenge for myself is to create a container that shows both business cards and ships them.
