สายพ่วงปลั๊กไฟแบบสองช่อง 2M/3M/5M/8M, สายทองแดงแท้ 3x1mm² กันน้ำและกันฝุ่นมาตรฐาน IP44 13A ปลอดภัยและเชื่อถือได้

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