We are professional in subwoofer,shallow woofer,midrange,tweeter,boom box and so on.in our workshop ,all workers comply SOP strictly when operate.so Chengrun's production is with high quality ,good sound and nearly little defects.every good idea from Chengrun members will be absorbed.your visit and good idea will be highly appreciated.
Contact Person: alice
Tel: 15958390953
Fax: 86-573-84641308