1.Ngaphambi kokufaka i-EPDM Roof System, qiniseka ukuthi ukhetha izinsuku ezimbalwa lapho izimo ezomile ziqinisekisiwe.2.Beka phansi ulwelwesi lwe-EPDM ku-substrate, uhlole ukuthi inakho yini phezulu noma phansi ngokubheka noma yikuphi ukuphrinta, amalogo omkhiqizo, ama-watermark njll. 3.Vumela ...
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