PHR drum
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Polypropylene bum (PPH Drum)
PH bu ihe eji eme ka polypropylene dị elu. Ọ bụ polyproposyylene nwere oke molecular dị elu na ọnụego agbatị agbaze. O nwere ezigbo kristal ụdị, ezigbo kemịkal, nguzogide elu na ezi ọnọdụ na-eguzogide. Ngọnarị, mana nwekwara mmetụta dị mma iguzogide na ọnọdụ dị ala, ejikwa ụlọ ọrụ kemịkalụ.