Хятад Полиуретан (PU) сэндвич хавтан үйлдвэрлэл, үйлдвэр …
Turkmen. Uyghur. Polyurethane (pu) as the core material of composite board is composed of the lower choi steel on the middle foam polyurethane, adopt advanced technology for the six components on-line automatic mixed casting operation, a one-time social ingredients center or factory proportion mixing technology, ...