ອີງຕາມປະສົບການ 10 ປີຂອງຂ້ອຍໃນການເຮັດວຽກໃນການຂາຍຜ້າມ່ານໃນຕະຫລາດ, there is a much better industrial chain in China.
You can get any kind of air curtain with the best quality and moderate price in China market.
So many companies import air curtains from Chinese suppliers.