Up to now, drumpump has been dual action pump and creates pulsing, with this dispensing without pulsing is now possible.
到现在为止，一直鼓泵泵和行动造成双重脉动，这可能是配药无脉动。
2
The DrumPump offers a simplified material exchange, prevents sealant loss due to leaking and helps to maintain a clean workplace.
转子泵提供了简化的物质交换，防止了由于泄露而造成的密封剂损失，有助于保持清洁的工作环境。
3
Finally there are mechanical skimmers - ideal for retrieving heavy oils - which use metal tooth discs, grab buckets and drum separators to remove the oil then pump it into a tank.