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內迫壁虎與外迫壁虎有什么區別?

點擊數:11282021-05-06 14:11:44 來源: 干壁釘_纖維板釘_自攻絲_車修壁虎廠家_內迫壁虎廠家_螺栓螺母廠家_邯鄲市通和緊固件制造有限公司

內迫壁虎和外迫壁虎是膨脹螺絲的兩種。內迫壁虎是內膨脹,螺絲固定性比較強;外迫壁虎是外膨脹,螺絲固定性比較弱。因此,多數時候使用內迫壁虎。
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