... and coagulum, such as adhesive, olein, tar, paint, paraffin, oil and allsorts of resin raw materials, are easy to get ... mixed andthe power of the pump is alleviated. Therefore, oil drum heaters will not be influencedby the seasons and can be used ... of operation2) Fiberglass reinforced silicone rubber stabilizes the dimensions of heaters 3) Designed according to actual shapes and dimensions, including ...