กราวด์หรอด เกลียว2ข้าง ยี่ห้อ Kumwell Tested : IEC 62561 – 2 , UL 467 Application : Suitable for disperse current into the earth to extend the length of ground rod by coupling Material : Copper-bonded steel Threaded Type (UL-Listed) Code No.…
Copper – Bonded Ground Rod – Threaded Type – Kumwell
