... ordering time indicate. Ordering notice When ordering please indicate needs valve's name, the model, the function code number, the specification ... fuse temperature and the control device position code number. The valve painting generally is the pessimistic hammer finish, if the user ... the DN20 steel pipe, span ≤6m, crook ≤3 place, bending angle ≥90°, bevelling radius ≥300mm. PYK-2- PYK-2- Multi-bladed ...