1. Product name: B28-ST. 
2. Material: A276 Bar316L (18Cr-8Ni-2Mo). 
3. Casting: sand-mold casting. 
4. Heat treatment: solution annealing. 
5. Precision: roundness ≦0.03mm.
1. Dimensions: 1/2".
2. Service application: water, oil, gas, thermal fluid, chemicals, and others.
3. Certifications: BVQI, NSF-ISR, ISO 9001: 2000.