Golden Tortoise Brand cold punching die-sets is the"Zhejiang Provincial Superior Quality Products"and a supericr standardized punching die-sets in China,which utilizes the latest advanced technical,special technigue in manufacturing,so our products have many advantages,which is long in service life,smooth on sliding,and strong in wear-resistance etc.The die-sets have complete types and specifications,that is classified sliding guide bushings and rolling guide bushings,which conform to the National Standard(GB),the trade standard and the enterprise standard.The special specifications can also be designed and produced on user's request.Our management set a high standard and have a strict manner in practice,we offer the best quality products and technical services to customers.