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NBB2-12GM50-E0E2A0A2接近开关NBN4-12GM40-Z0-V1NJNCNGM60
NBB2-12GM50-E0NJNCNGM60接近开关NBN4-12GM40-Z0-V1E2A0A2
NBN4-12GM40-Z0-V1E2A0A2接近开关NBB2-12GM50-E0NJNCNGM60
