1, material: UHMWPE molecular weight: 2.5-5million 2, Usage: sand and gravel dredging project, 3,plastic tube ... UHMW- PE pipes Q: Any advantages about the UHMWPE sand and gravel dredging pipeA1. Longer LifeA2. Non-ScalingA3. ... sea, you also need HDPE floats Matched products 2:Rubber tube, W e all know that the ... 000usd, we only accept 100% fore T/T . 2, If the contract amount is great, we can accept ...