SPCE:2,2-3/8,2-7/8,3-1/2 INCH
The raw material we select are all the alloy atructure steel which is produced by domestic and international well-known steel works like TPCO, Baosteel ,Hengyang Valin Steel and Timken. After the detection, both ends of a pipe are upsetted.
Gina Gao
HP: +8615831190484
SKYPE: ginagao321
Email:ginagao321(AT)gmail(DOT)com
