Are Lymantic and Romantic Ceramics Family?

According to the inquiry of two products, they are both from the same company and Guangdong Romandike Ceramics Co., Ltd. Ceramic tiles are acid and alkali-resistant porcelain or stone, building or decorative materials, which are made of refractory metal oxides and semi-metal oxides through grinding, mixing, pressing, glazing and sintering. It is called a tile.