Lyuduo-引張りばね 0.8mm Spring Steel Dual Hook Tension Spring Hardware Accessories Tension Spring 4-12 Mm 50-100mm, 5PCS, 耐圧縮性と耐久性(80mm,9mm)
Lyuduo-引張りばね 304 Stainless Steel Tension Spring 0.7*5mm Wire Diameter S Hook Coil Pullback Extension Tension Metal Spring Wire, 耐圧縮性と耐久性(40mm(10pcs),5mm-S hook)