... through the base table is made of forging process using,Made of forged brass,Completely free of medium influence ... plastics with high temperature hydrolysis,,Never wear,Measurement accuracy by using cycle impact. Never,Installation is extremely convenient, long service ... 4″Pressure loss ≤0.025MPa(Qn)Work pressure ≤1.6MPaCold heat using range cold hot amphibiousMeasurement accuracy level 1, level 2, ...