Home default The connecting pipe between the drum and the material pump is not allowed to exceed 1.5 meters. The connecting pipe between the drum and the material pump is not allowed to exceed 1.5 meters. Pvc Pipe December 27, 2019 Share: Facebook Twitter Pinterest The connecting pipe between the drum and the material pump is not allowed to exceed 1.5 meters. ... Click to read moreOthers news: Another news: