1.Mbere yo gushiraho sisitemu ya EPDM yo hejuru, menya neza ko uhitamo iminsi mike aho byumye.2. Shira hasi ya EPDM membrane kuri substrate, urebe niba ifite hejuru cyangwa hepfo ushakisha ibyacapwe, ibirango, ibirango byamazi nibindi 3. Reka reka ...
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