China
联系人 Ms. lune
No 117 Shenbei Road, Hushitai Development Zone,, Shenyang, Liaoning
my email is lunezuo+***** Hermetic Automatic Door A brand new automatic door model designed after 3 years of development by KBB Group. Able to completely cut off internal and external air circulation and noise, making it extremely suitable for hospitals, research institutions, recording studios, clean workshops and any other areas where noise or air separation is required.