China High Quality Transparent Borosilicate Glass Test Tube (144)

Model NO.: 144
Outer Dia: 5-400mm
W.T.: 0.5-10mm
Deep Processing: Decal, Sandblast etc.
Trademark: Chuangyou
Transport Package: Carton, Carton+Pallet
Specification: 5-400mm
Origin: Shandong
HS Code: 70023200
China high quality transparent borosilicate glass test tube 
Product Information
 
Outer Diameter 5-400mm
Wall Thickness 0.5-10mm
Length up to your demands

Usages:
 1.Lighting Decoraions
 2.Glass blowing
 3.Solar Vaccum Tubes
 4.Glass Arts & Crafts
 5.Laboratory Instruments
 6.Glass lamp shade

Physical and Chemical properties
 

NO.

Physical and Chemical properties 

Numerical Value

 

1

Silicon content

≥80%

2

Transformation temperature 

525±15 °C

3

The annealing temperature    

560 °C

4

Softening point

820±10 °C

5

Refractive index

1.47

6

Transmittance(2mm)

92%

7

Elastic modulus

76KNmm-2

8

Tensile strength 

40-120Nmm-2

9

Coefficient of mean linear thermal expansion(20/300°C)

3.3±0.1(10-6K-1)

10

Working point

1260±20 °C

11

Density at 20 °C

2.23 g/cm2

12

Hydrolytic resistance at 98 °C

ISO719-HGB1

13

Hydrolytic resistance at 121 °C

ISO720-HGA1

14

Acid resistance class

ISO1776-1

15

Alkali resistance class

ISO695-A2

China High Quality Transparent Borosilicate Glass Test Tube (144)
China High Quality Transparent Borosilicate Glass Test Tube (144)

Packing Information
 Size below 20mm: Shrinked film + Carton
 Size over 20mm: Paper + Carton
 
China High Quality Transparent Borosilicate Glass Test Tube (144)

Digital Explosion Proof Junction Box

JXHS series Junction Box advanced technology during production, stresses the details during design, implements design standard during processing, and has high consistence of product quality. It has various features such as strong damp proof, anti-corrosion and anti-electromagnetic capacities and high adjustment accuracy, and is suitable for various adverse environments. Its main advantages include:
The product uses own mold to make technologic design, the housing uses aluminum and silicon alloy and upper protrusion and lower sinking structure is used so as to ensure good sealing performance; protective grade reaches IP 68.
Main parts are imported, wiring bar is welded with precise anti-surge electronic components, which can prevent Load Cell damage caused by lightning and power grid surge voltage.
Whole device uses stainless steel grounding bolts to ensure reliable grounding during operation.
Assembly of junction box uses not-loose screws so as to avoid loss during load cell wring.
Wiring board uses combined screws for assembly, which are convenient for removal.
In order to ensure protective effect, force and diameter of tightening parts have introduction.

Outdoor Junction Box,Digtal Junction Box With 10-Wire,Digtal Explosion-Proof Junction Box With 6-Port,Digital Explosion Proof Junction Box

SHANDONG JINZHONG SCIENCE & TECHNOLOGY GROUP COMPANY LIMITED , https://www.chinagoldbell.com

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