Place of Origin : Hangzhou,China
Delivery Time : 3 Weeks
Product Capacity : 10000
Payment Terms : L/C

Foundation Equipment Supply (FES) Kelly bars may be made in friction type and locking type, in 3, 4, 5 or 6 elements for some special occasion. For sake of common application, the external diameter is designed to be in universal dimension, such as 273mm, 299mm, 340mm, 377mm, 406mm, 419mm, 440mm, 470mm, 508mm, etc. High strength steel tube material is picked and heat-treated to arrange production, which enables the Kelly bars to work well under maximum torque of the torque output. Kelly keys a