Reprap 3D Printer Idler pulley GT2 Toothless 18 mm Shaft 3 mm Spek: Material : Aluminum alloy Diameter Luar : 18 mm Diameter Tengah : 3 mm Belt : GT2 - 6 mm Groove : 6.5mm Length : 8.5mm Jika ada pertanyaan, silahkan hubungi : Whatsapp : +6586490375 Line : James7Mak Email : info@3dfilament.co.id