Drill String Cross-over Sub uses AISI4145H chromium-molybdenum steel, execute API specification.We can produce the same-dia type, reducers type and L-type three types, the screw can be cold thread rolling, copper or phosphate treatment.
Quard 400 wear-resistant steel plate are one of the prominent Quard 400 Wear Abrasion Resistant Sheet Plates Suppliers, Manufacturer & Exporters. Quard 400 Plates is engaged in supply of Quard 400. Due to its optimal combination in hardness, strength and
20MnV alloy structural steel under GB/T 3077 chinese standard, can be produced into hot rolled round bars and square bars, cold-drawing bars,forged bars. We henan KUNFENG can supply GB/T 3077 20MnV all of shapes.
In various fields such as construction, bridges, energy, and aerospace, the production of large and uniquely-shaped steel components is a crucial step in any project.