空房间未删减完整版在线观看,目中无人2在线观看完整版电影,激情丛林未删减完整版高清在线观看,日韩色资源,色戒完整版野猪版,汤唯梁朝伟色戒电影完整版在线观看,免费在线日韩av

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