About 1 Trademarks found that are owned by Yiguang Zhang

Arbors and trellises made of wood; Automated security gates not of metal; Chicken coops; Garden sheds of non-metallic materials; Gazebos not primarily of metal; Greenhouses, transportable, not of metal; Non-metal exterior window shades; Non-metal structures for mounting solar panels; Portable gazebos not primarily of metal; Pre-fabricated greenhouses not of metal

The wording Volhollo has no meaning in a foreign language.