Asphalt Batch Mix Plant-QLB-15 It's equipped with Aggregate Batcher, Coal miller, Wet filter, Bag filter, Control room and Bitumen heating tank to be compatible with QLB-15 for customer option. The wet filter or bag filter is designed to meet the high-degree environment requirement according to the different goverment rule. If you don't have the container to hold bitumen, it's good for you have bitumen heating tank to store and heat the bitumen. Our cold feed units are available for portable and stationary facilities. These heavy-duty units meter the aggregate into the mixtureproduction process and are built to give many years of service in demanding environments. For us, nothing is more important than the quality control. Our technology, combined with experience and craftmanship, must give you the best product at the best price.