欧美大BBBBBBBBBBBB,一级特黄录像免费播放中文,国产超碰人人爽人人做人人添,97AV人人妻人人澡人人爽,97无码人妻精品免费一区二区

News center

Our company introduces new high temperature asbestos free board st-2063

In order to meet market demand, our company has introduced asbestos-free sheet ST-2063 for high-temperature steam. Because it contains glass fibers and inorganic fillers, it has excellent heat resistance and mechanical properties.

Meet the following certifications:

- DIN 30653  

- BAM (Oxygen)

- TA-Luft (VDI 2440)

- ISO 10497

- EC 1935/2004

- BS 7531 Grade X



欧美大BBBBBBBBBBBB,一级特黄录像免费播放中文,国产超碰人人爽人人做人人添,97AV人人妻人人澡人人爽,97无码人妻精品免费一区二区