| Picture | Model | Name | Feature |
 |
LZZ-40 | metal tube Rotameter | LZZ-40 metal tube Rotameter |
 |
LZD-25 | metal tube Rotameter | LZD-25 metal tube Rotameter |
 |
LZZ-25 | metal tube Rotameter | LZZ-25 metal tube Rotameter |
 |
LZD-15 | metal tube Rotameter | LZD-15 metal tube Rotameter |
 |
LZZ-15 | metal tube Rotameter | LZZ-15 metal tube Rotameter |
 |
LL-300F | roots flowmeter | LL-300F roots flowmeter |
 |
LL-250F | roots flowmeter | LL-250F roots flowmeter |
 |
LL-200F | roots flowmeter | LL-200F roots flowmeter |
 |
LL-150F | roots flowmeter | LL-150F roots flowmeter |
 |
LL-100F | roots flowmeter | LL-100F roots flowmeter |
