Shanxi Yida Special Steel Group Co., Ltd.
No 9 , Hongyeli , Yifenyuan ,Taiyuan , Shanxi , China
Tel : + 86-351-6280577
Fax : + 86-351-6281608
www.yidadrillcollar.com
E-mail : sales@yidadrillcollar.com
Yida Special Steel Group Limited Corp.
3845 Cypres Creek Parkway Ste 319
Houston, TX 77068
Tel : 866-866-2812
E-mail : ussales@yidadrillcollar.com