We are the biggest factory producing small gasoline engine cylinder and crankshaft case for brush cutters, chainsaws......, Complete production chains, including Die-casting, Chroming, Machining, inspection and Packing lines have been built. 50% of cylinder and crankshaft case at Chinese market are produced by us, most part of exporting brands are our partners. Our cylinders can work 600+ hours, which is three times of those at the market. Looking forward to cooperate with you.