Ibango eliphambili: 1.} ukwenziwa kweSpils okhethiweyo kubandakanya imizimba yemfumba kunye ne-pile pile inesithambiso esijikelezayo, kwaye i-pile ye-pile inikezwe ipleyiti ye-pile yokulinganisa Ukuxinana komhlaba wemfumba, kwaye ububanzi beplate yensimbi ye-Anbar ikhulu kunokuba ububanzi be-1 ukuya kwi-5 cm {{4} .
Ikhonkrithi esenziwe nge-spiral ethathiweyo yokwakha, equka ikakhulu i-pile propecioidal ye-Spiral Spires kumphezulu weplate ye-Pile, kunye nepleyiti yokuphela kwe-Pile, kunye neplate yokuphela kwe-pile kunye ne-pile yoxinzelelo ezichaseneyo zomngxunya wokuhlala, Ngomngxunya we-pile core kunye nomngxunya wangaphakathi we-Square kunye neplate yokuphela kwepleyiti ephezulu ijikelezwe ngu-Inner Hole kunye nePlayithi yeNdlela yeNdawo eQhelekileyo, kwaye isebenza nzima .