少妇bbb搡bbbb搡bbbb,91人妻人人澡人人爽人人精品,中文字幕日韩精品无码内射,丁香婷婷色五月激情综合深爱,看亚洲A级一级毛片,亚洲AV片

新聞中心

SEALTEX ST-2058墊片材料獲得ELL 飲用水認證

SEALTEX ST-2058無石棉墊片材料獲得ELL Cert.2018飲用水認證
 ELL Cert.2018 (former KTW)
This Guideline can be used to assess elastomers in contact with drinking water within the meaning of the Drinking Water Ordinance
This is the main standard for elastomer materials in contact with drinking water in Germany.
“ELL證書2018(原KTW)。
本指南可用于評估“飲用水條例”含義范圍內與飲用水接觸的彈性體
這是德國與飲用水接觸的彈性體材料的主要標準。”
SEALTEX ST-2058獲得的證書有:KTW ELL、DVGW W270,Lloyd’,VP401,RoHS,REACH