97欧美精品系列一区二区,搡BBB搡BBBB搡BBBB,国产一级婬片A片A毛片18禁,旧里番高洁圣女身染白浊,狠狠的干成人大胆艺术,国精产品一区一区三区免费视频,亚洲精品一区二区久

Chemical Name: 2,2, 4- trimethyl-1,2-dihydroquinoline polymer
Chemical Structural:

Molecular Formula :(C₁₂H₁₅N)n n=3-4
Technical index :GB 8826-2003

Item	Excellent grade quality	First grade quality
Appearace	anber half ball particle
Softening poin oC	88-95	80-100
Ash content % ≤	0.3	0.5
Heating loss % ≤	0.3	0.5
Polymer % ≥	54.0	11
First melting point oC	77±2

Mark: Excellent grade products produced according to USA FULAIKESI Standard, First grade according to international standard.

Property:This product is amber half ball particle, specific gravity: 1.05,which could be dissolve in the benzene, chloroform, carbon bisulfide and the acetone, does not dissolve in the water. Small toxicity, low pollution, good compatibility with rubber. This product is inflammable, so when storage and transportation pays attention to the fire protection and moisture prevention.

Use:It is widely used in producing tyre, rubber shoes, rubber pipe, adhesive tape, electrical wire, electric cable and other rubber goods.

Packing: 25kg Three kind of material kraft paper bag, inlined plastic bag.

  Previous product： 2-Methyl Indole