Eke roba NR(天然橡胶)na-m188金宝慱亚洲体育官网首页20ere si橡胶osisi收集乳胶,bụ聚合物nke异戊二烯。Ọ nwere ezigbo mgbochi iyi, delu delu, Ike na-agbaji na伸长。Ọ dtotal mfe ka nká na ikuku ma na-ejide onwe ya mgbe ọ na-ekpo ọkụ。Ọ dpacket mfe, gbasa na igbari na, nweta mmanụ o…
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