The metal corrugated pipe sealing

The DBB type serial rubbers
corrugated pipe structure sealing

Sealed ring of hard alloy

Sealed ring of carborundum

The automobile water sealing

DB59U，DB58U，DB59B，DB58 Model

Collect the putting type to seal

The cauldron using and sealing

AL₂O₃99%

Density of volume

g/cm²

3.9

Luo's hardness

HRA

87

Body air vent rate

%

＜0.4

Heat conduction coefficient

W/M.K

16.7

Resist the intensity of turning back

g/cm²

2800

The response frits

Have not pressed and fritted

Xiao's hardness

HS

≥100

≥105

Body air vent rate

%

＜0.3

＜0.2

Density of volume

g/cm²

≥3.00

≥3.05

Compression strength

Mpa

＞1150

＞1200

Bending strength

Mpa

＞335

＞350

Hot coefficient of expansion

/℃

4.5×10^-4

4.5×10^-4

Content of carborundum

%

≥90

≥98

Dissociate the content of silicon

%

≤10

≤1

The response frits

Luo's hardness

HRA

88-91

Body air vent rate

%

＜0.2

Density of volume

g/cm²

14.8-15

Bending strength

Mpa

≥1470

Hot coefficient of expansion

^-6/℃

5.5×10^-6