Jinan HAYA Group is a leading manufacturer of PVC window machines, aluminum insulating glass machines and sealants. With more than 14 years development experience, pioneer in the manufacturing industry. was founded 1994 soon made nationwide reputation for ...

Jinan OKNA machine co.,ltd is a professional manufacturer of win-door machineries.We are capable providing more than one hundred products,which mainly fall into two categories:1.PVC processing machines :from cutting-welding-milling-corner cleaning ...