久久青草免费91线频观看不卡,baoyutv国产欧美在线视频,久久精品94精品久久精品,男同桌上课用手指进去了好爽,久久综合给会久久狠狠狠

1

Before ageing test

1.1 Elongation at break(%)

≥300

1.2 Tensile strength(MPa)

≥15

1.3 Tear Resistance(N/mm) 

≥30

2

Compatibility oven ageing test

2.1 Test condition

100±2℃/168h

2.2 Tensile strength rate(%)

±30

2.3 Elongation rate at break(%)

±40

2.4 Elongation at break(%)

≥250

3

Oil-resistance test

(IRM902 oil)

3.1 Test condition

100±2℃/24h

3.2 Tensile strength rate(%)

±40

3.3 Elongation at break rate(%)

±40

4

Heat extension test

4.1 Test condition

200±3℃/15min, stress20N/cm²

4.2 Loading elongation rate(%)

< 175

4.3 Un-loading elongation rate(%)

< 25