ϴԴϩ(ԵܶȾϩLLDPEܶȾϩHDPE)ΪԭϣĹܹ͡ӡ©ԡᡢϻʴŵ㡣һԡʴŵΪͻܴͷӦᡢҺʹлܼܲѡϽֵȲϣƷΣƷǴ淴ӦʴҺྻҺ봢ƷϹװʳƷҺ
Ͳܷ豸Ƽ˾ַ ӭĹ٣ٶһ£ ϴpe豸