| Picture | Model | Name | Feature |
 |
LL-50 | roots flowmeter | LL-50 roots flowmeter |
 |
LL-40 | roots flowmeter | LL-40 roots flowmeter |
 |
LL-25 | roots flowmeter | LL-25 roots flowmeter |
 |
LL-15 | roots flowmeter | LL-15 roots flowmeter |
 |
LLQ series | roots flowmeter | SHANGHAI AUTOMATION INSTRUMENTATION CO., LTD |
 |
LL series | roots flowmeter | SHANGHAI AUTOMATION INSTRUMENTATION CO., LTD |
