Nisen bụ a ụlọ ọrụ aku R & D, n'ichepụta, ahịa nke upvc & aluminum window eme igwe, ikpuchi iko mmepụta akara na window ụzọ ngwaike wdg
“Inye onye ahịa ihe dị mma, inwe ọganiihu na ọha mmadụ, ito eto na ndị ahịa, ịkwalite ndị otu” Bụ ntọala nke na -etinye njikwa Shandong Nisen Trade Co., Ltd. n'akụkụ niile.