Yuyao Kaidi Display Instruments Co.,Ltd Customization: We have a strong R&D team,and we can develop and produce products according to the drawings or samples the customers offered. Cost: We product pressure gauge of fire extinguisher more than 20 years, we can offer price and products directly. Quality: We get EN3-7 approval and established Quality management system ISO9001- 2015. Capacity: Our annual production capacity is over 10000000 pcs presssure gauges,we can meet the needs of different customers with different purchase quantity.