The All Stainless Steel Pressure Gauge has an internal compensating diaphragm and a filling plug for field filling.
全不锈钢安全 压力表顶部设有充液塞及一个内部补偿膜片，可在现场充液。
2
The coated pluggauge, precision of which is in accord with demands of origind design, can be directly put into use without any pretreatment.
几何形状完全符合精度要求，镀后的塞规可以直接投入使用。
3
The three - meter checking device and hydraulic machine were developed to substitute the traditional three - legged divider pluggauge and correction by the thread rod.