AISI 4140是一种具备良好淬透性与高强度的低合金钢，广泛应用于石油天然气领域。通过调质热处理，该材料可在22~36 HRC硬度区间内实现多级强度调控，适用于高负载结构件与下井工具。 4140钢因其优良的机械性能和加工性能，在高强度结构件、下井工具、钻具 ...

As with the Model 20, Wilson Combat builds the new Model 20S around an CNC-machined and EDM-cut cylindrical action of 4140 steel, with a bolt that’s machined from 4340 barstock. The push-feed ...

The Staccato HD P4 is compatible with polymer Glock magazines, but ships with Mec-Gar 18-round steel Glock pattern mags. Going into testing, we were eager to see how this might change the feel or ...

Phase I—Determining the Current Status of the Brand The purpose of this phase is to understand the company and brand, including exploring key issues, opportunities, and challenges. The reason is to ...

And another shoutout for all of you guys," said Goodell. Friday's ceremony marked the completion of the structural steel phase of the project, which will be entirely completed in time for the 2026 ...

What began with a focus on weather forecasting has evolved toward addressing errors in scientific modeling. In the collaborative environment of the Penn State Institute for Computational and Data ...

WASHINGTON :Neuroscientists have produced the largest wiring diagram and functional map of a mammalian brain to date using tissue from a part of a mouse's cerebral cortex involved in vision ...