Company Description
Qingdao Do King Industrial Co., Ltd. manufacturer of ductile iron formwork nuts, wing nuts, prop nuts, jack nuts, etc. with well-equipped testing facilities and strong technical force.
Our company provides good quality products with a wide range, reasonable prices and good services. Doking products are widely recognized and trusted by users.
Doking welcomes new and old customers from all walks of life to contact us for future business relationships and mutual success.