一级a一做a爱片免费|国产微拍无码精品一区|免费无遮挡无码永久视频|中文AV免费一区二区三区|国产成人亚洲综合网站小说|一区二区三区在线不卡免费|欧美日韩一区二区三区视视频|亚洲国产精品va在线观看黑人

您的瀏覽器版本太低,將不能正常瀏覽。請(qǐng)升級(jí) Internet Explorer或使用Google Chrome瀏覽器。
如果您在使用雙核瀏覽器,請(qǐng)切換到高速 / 極速 / 神速 核心。
Naphthalene
Product
2020-03-28
Product Presentation:
Production capacity over 60,000 tons/Y,High-quality raw materials for concrete water reducing admixture and refined naphthalene. JZC(JFE) unique production method,assuring steady supply.Top and stable quality.
 
Use:
Concrete water reducing admixture widely used in concrete water reducing admixture and other building materials,with high customer valuation.It can also be used in refined naphthalene,dye and plasticizer processing, having good use effect.

Index Name Unit GB/T6699-1998
Excellent grade First grade Up to grade
Exterior   White, reddish white or yellowish white. Powder crystal or flaky crystal.
Crystallization point ≥78.3 ≥78.0 77.5
Nonvolatiled matter wt% ≤0.04 ≤0.06 ≤0.08
Ash wt% ≤0.01 ≤0.02 ≤0.02