日本无吗不卡高清免费vanyang baoyuan chemical co.,ltd
address： no.477 angang avenue yindu district anyang henan province
the market of domestic naphthalene is weak today. there are few terminals in the downstream terminal. the initial stock is basically finished. in addition, the production enterprises are at the low level. the cost support of the industrial naphthalene is further softened and the inner space surface is increased.