Bonnel spring Steel wire range: 2.0mm to 4.0mm Turns range: 4 to 9 turns Height range: 90mm to 250mm Bonnel springgood quality, competitive price, swift reply We are metal products manufacturer and exporter in China, we offer spring tines, rubber track, rubber belt and other agri parts for harrow , tedder, rake, baler, harvester, cultivator and other farming equipment. Also,we offer zig zag ...