Purchase Qty. Reference FOB Price
1-9 Pieces US$3,199.00
10-19 Pieces US$3,099.00
20+ Pieces US$2,999.00
Product Description
Product Description Using the principle of cold heading, the plastic deformation of the end of the steel bar is made, and the diameter is increased by 4 ~ 6 mm, and then the thread is processed. The actual cross-sectional area of the processed thread is larger than that of the original ...