• 1. 安全门开关: Safety Gate Switch
• 2. 层门安全开关: lading door safety switch | landing sagety edge
• 3. 开门安全限制开关: Open the door safety limit switch

• 1.安全门开关设计，开门即停安全可靠。
  Special safety switch on the door. Operation stops immediately when the door is opened.
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