address：Shijiazhuang chen Tai Environmental Technology Co., Ltd.
Tel：0311-86826970
Fax：0311-82649608
Email：chentaihj@163.com
The url：http://www.hebeict.cn
Tel：0311-86826970
Fax：0311-82649608
Email：chentaihj@163.com
The url：http://www.hebeict.cn
classic case
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