1. Check whether the coupling screws are tight
2. Regularly check whether the coupling rubber cover is aging and replace it in time
3. Update to the durable new material cover coupling type
Địa chỉ : No.78, Bangtai Road, Qingmeng Zone, Quanzhou, Fujian, China
điện thoại : 86-595-22216883
Whatsapp : 15905996312
E-mail : machine@hongancn.com
