... 1. wear-resistant, anti-abrasive 2. Good quality, high efficiency flexible impeller1.different sizes according customs' requirement2.wear-resistant, anti-abrasive3 ... .Features: Wear-resistant, anti-abrasive, tough, durableMaterial: CR, NBR,NR, Silicon, VitonInsert: Brass, Stainless Steel or PlasticBlades: As per customer' s ...