Ningbo Yierka Seals Co ., Ltd is an enterprise specialized in producing and researching hydraulic seals . It has the history of manufacturing TPU hydraulic seals more than 20 years . Since 1991 , the company took technical corporation with Sciences Academy of China , Hefei Branch and has succeeded in turning our series of hydraulic seals to be used in mine , hydraulic system , plastic jetting machinery , engineering machinery and so on .
The company has abundant technology , senior research fellows advanced physical and chemical labs . It can produce according to the polyurethane , polytetrafluoro and rubber samples provided by customers...