Nine domestic toy producers have applied to local quality watchdogs to recall some of their products, the General Administration of Quality Supervision, Inspection and Quarantine said on Monday. The producers are from Shandong, Hubei, Shanghai and Beijing, including Tengzhou Wanbao Stroller Co. Ltd., Shandong Qiyue Children's Tricycle Co. Ltd. and Shanghai Aillia Industry Co. Ltd.. The flawed products are mainly strollers, children's tricycles and building blocks. The defects are found in various parts including cords, wheels and brakes. The defects may harm children, said a statement from the administration. If consumers find any defects in toys, they should complain to local quality watchdogs or the administration directly, the statement added.