Hoʻokumu ʻia i nā makahiki 1970, Shuangfeng Shengde komo i nā mea kūpale Co., Ltd he mea hana ʻoihana no nā mea like ʻole me nā manganese kiʻekiʻe e pale ai. E like me ka pāhaʻi iwi āpana, ʻāpana lole crusher e komo ai, kahi e komo ai ka mea crusher, kahi ʻāpana hama crusher.
Aia ma Shuangfeng, Hunan, uhi ʻo Shengde i kahi ʻāpana o 9000 mau mika mika, me nā kānaka hana he 200 a ʻoi aku ma mua o 20 o ka ʻoihana a me nā ʻenehana ...
Hoʻokipa maikaʻi mākou i ka poʻe ʻike maka mamao ʻia ma ka home a me nā ʻāina ʻē no ka laulima ʻana a me ka lanakila lanakila ʻana.