Ana amfani da haɗin bututun ƙarfe na nau'in B stianlee don bututun EN877 da haɗin fittingngs
Takardar shaidar CE ta 1 ta nau'in B stianlee bututun ƙarfe
Garket ɗin roba na EPDM guda 2
3 Bakin ƙarfe da ƙusoshin ƙarfe na caton da aka yi da galvanized
4 A fitar da bututun ƙarfe na nau'in B stianlee zuwa ƙasashen Jamus, Sweden, Finland, Norway, Rasha, Singapore, Birtaniya, Cyprus da sauransu.













