Polyurethane / polyurea na-emepụta igwe na-emepụta ihe na-emepụta ihe, ngwá ọrụ ahụ kwesịrị ekwesị maka mkpuchi ọkụ, mmiri na-adịghị, mgbochi corrosion, wụsara, wdg. Ọ dị mkpa ka a na-eme ihe ọkụkụ nke polyurethane n'ọtụtụ ebe.Echere na ọtụtụ ndị ahụla usoro iwu nke ịgbasa polyurethane, mana ha bụ ...
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