Φ—Signify center distance of assembling movement's mounting groove.
L—Signify the length of needle pivot (which means shaft gear).
Product Name: Bimetallic Assembling Movement
Material: Brass/stainless steel 304
Transmission ratio: 11.67 or 8.5
Movement's shaft gear: 12 or 16
Certificate: ISO9001; ISO14001
Used: Pressure gauge