Changrongjia Group incorporated na 1996, na-tumadi aku na-amị kpọmkwem pneumatic punching ebu, OPP plastic akpa na laminated akpa na okpomọkụ nnyefe obibi technology na anyanwụ ike photovoltaic technology nke nnukwu-ọnụ ọgụgụ technology ụlọ ọrụ site n'omume ya ọhụrụ na ịsụ ụzọ mmụọ.
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