Sichuan River Stone Co., Ltd. thehiloe a 2002, ke proizvodnje litsebi le o nkisang ea tsamaiso fapaneng signage. Ho khomarela boleng khamphani ya "maraka-sekametseng le moreki-centric", re fana ka akaretsang mong setopong tsamaiso e khopo ea matsoho tharollo.