| Variety | Grade | state | shape | Specification (mm) | use | Executive standard | 
| Brass tube series |       H62       H63 H65 H68 H70 H85  |            M(Soft)       Y2(1/2 Hard) Y(Hard)  |      Straight |       Outer diameter: φ3-165.0       Wall thickness: 0.5-15.0  |            Instrumentation       Plumbing equipment Pressure tube Inflatable valve Auto parts Decorate  |            GB/T 1527-2017       GB/T 18033-2017 ASTM B135M-2010  |     


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