Hangzhou Papaya trading CO.,LTD . is a modern enterprise that combines development, design, manufacture, sale and service, and its products include all kinds of fastener (bolt,nut,washer) ,drive shaft for farm tractor and its accessories such as yokes and universal joints and so on. We have formed our specialty production system: forging, foundry, mechanism processing, and heat treatment. Our products have been sold as far as Europe, America and Middle East and all over the world. ...