The surface finish of slick drill collar shall be hot-rolled and mill –finished. Spiral drill collar is to do slot turning outside the surface. Spiral ...

View Products Detailed →

Product Tags:

steel shaft collar welding cast iron with mig drilling collar

Home Products Suppliers About Us Contact Us Help Site Map 公司介绍联系我们

Français Русский язык Español 日本語 Português

China Hot Products: A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | 0~9