These Advanced Ankle Systems Use Aerospace Grade Titanium

These Advanced Ankle Systems Use Aerospace Grade Titanium

Aerospace-Grade Titanium Rods - 900+ MPa Tensile Strength, Polished

"those / these" are determiners and are used before nouns to refer to a particular group of things / people, e.g. these people / those rules / those buildings. Update: 题主问的是What are those? 然后他.

High-Strength Titanium Plate ASTM Gr1 Gr2 Gr2h Gr3 Medical Grade

High-Strength Titanium Plate ASTM Gr1 Gr2 Gr2h Gr3 Medical Grade ...

Titanium-Based Alloys for Aerospace Applications | Carpenter

Titanium-Based Alloys for Aerospace Applications | Carpenter

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