new type butterfly Tower Bolt material:steel finish:zinc plating ,nickel plating size:20mm-125mm butterfly tower boltMaterial: steel, stainless steelSize:20mm 30mm 40mm 50mm 60mm 80mm 100mm 125mmthickness:1.0mm 1.2mmSurface finish: ZP/NP/BPPacking: 12 pcs in inner box ,then in cartonpayment:30%advance,70% after BL copy stell cabiner and window new type zp butterfly Tower Bolt