Linkrest is the biggest sleeper mechanisms munufacturer in China.We have two factories, one for folded sleeper mechanisms and another for pull out sofa bed mechanisms and tubular construction swivel & recliner mechanisms.At this moment we offered more than 20 different types of sleeper mechanisms for residential and commercial customers,but we developped almost four brand new mechanisms a year in past years.The reason is that customers need more and more new contemporary models to meet the need of young generations and salesable design for online sales.