１ (extruded silicone strips betumi asiw nsu ano yiye,boa ma ɛyɛ dry-ntetewmu a ɛyɛ nsu, a ɛmma nkwakoraa ne mmerewa ne mmofra ntumi nhwe ase na wɔkwati sɛ wɔbɛtrɛw nan ase ne nkekae mu wɔ adan afoforo mu
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3.Silicone extrusion betumi atwitwa no kwa na wɔayɛ no pɛpɛɛpɛ wɔ ne kɛse mu. utility nnade, adididan mu nnade, ntwamu ne nnuaba nnade nyinaa betumi adi dwuma de atwitwa .