Puyang City Lok Yan Cylinder Co., Ltd. is professional motorcycle manufacturer of the cylinder. Of the motorcycle engine accessories industry group deputy head of the cylinder liner professional team.

• 濮阳市乐燕缸套有限公司是摩托车气缸体专业生产厂家。系全国摩托车发动机配件行业组副组长兼缸体缸套专业组组长。