Fire sprinkler change approval price

Fire declaration does not cost money, and material sampling requires testing fees. The nozzle is shifted, and the prices mentioned above are reasonable. 300 yuan to 400 yuan (unit is spray head) are similar. However, the sub-price may include the fire inspection fee. Because the fire protection of interior decoration projects needs to be re-declared, the design should be approved first, then the construction should be carried out, and the fire protection acceptance should be carried out after the construction is completed.