when the sound waves incident into it, it can cause gaps in the air vibration; the viscous drag due to air friction and pore walls, so that a considerable part of the sound energy into heat energy has been consumed.
Project Unit Test result
Density g/c 22
Hardness C-TYPE 22
Tensile kPa 400
Elongation % 100
compressive kPa ≤5
Note / /
TEL : 0086-519-86302982 / FAX : 0086-519-86302983
1113 room 8building Nanyang commerce plaza, jiangsu changzhou China [CN]
Company Advantage
Detail Company Introduction
Changzhou Daye Tengfei Sponge factory which is in Jiangsu province was established at the beginning of 1995. As one of the earliest priviately run factory which takes initiative operation on the item of sponge productions in China, it has been changed from the small workshop business type into the stock system manufacture after several years ceaselessly reformation and innovation with "Daye Tengfei Sponge " as its trademark. Now it goes to the developing line of doing research on the diversification and verities instead of producing single products.
ECROBOT CO., Ltd, Business Registration Number : 220-88-71747, CEO J.W.Park, TEL : +82-2-552-7676, E-mail : E-mail : Contact us Address : (Hwanghwa B/D 11F, Yeoksam-dong)320, Gangnam-daero, Gangnam-gu, Seoul, South Korea
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