Pipe & Tube
Description
The wall thickness of heavy weight drill pipe is between drill pipe and drill collar, its strcture is simliar with drilll pipe. It is made from premium alloyed steel. Its both tool joints and middle upset are welder hardbands.
drill pipe, drilling tools,Read More
TIANHE PETROLEUM MACHINERY CO.,
drill collar
Address: NO.43 West Diming Street,
Mudanjiang, Heilongjiang
China, 157011
Tel: 86-453-6532609-8311
Fax: 86-453-6531608