... light weight, non-deformation, non-leakage.Scope: agriculture,industry,household,construction,farming,feeding,etc.ZY-401 CapacityUpper-diaBottom-diaHeightThicknessWeightColourSticker23L50cm39cm18cm4mm2KGblackNoZY-402 CapacityUpper ... is made of rubber and plastic,so it is more durable and lighter than the ones only made of rubber. ... that you could earn a great deal of profits. construction rubber tank