Tea-leaf is purely natural material, harmless and doesn't produce secondary pollution. Tea-leaf can eliminate formaldehyde that is because it contains same activation composition, s…
Now that gave them a very different idea about their product, they saw how people responded to it; they could go up to customers in the store and ask them questions about it.
Internal CPU provides all functions usually built in electronic flow meters, incl. low flow rate correction, frequency response setting, bandwidth of sensitivity setting at low flow rates, etc.