fashion trend color in 2022 Wholesale heat resistant 3.3 glass borosilicate colored tube (60658363969)

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Product Overview

Description


Wholesale heat resistant 3.3 glass borosilicate colored tube

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Product Description

 1.Main composition

SiO2

B2O3

Al2O3

Na2O+K2O

80±0.5%

13±0.2%

2.4±0.2%

4.3±0.2%

 

2.Physical and chemical properties

Coefficient of mean linear themal

expansion(20°C/300°C)

3.3±0.1(106K1)

Softening point

820±10°C

Melting point

1260±20°C

Transformation temperature

525±15°C

Hydrolytic resistance at 98°C

ISO719-HGB1

Hydrolytic resistance at 121°C

ISO720-HGA1

Acid resistance class

ISO1776-1

Alkali resistance class

ISO695-A2

 

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Packaging & Shipping

 0203

Company Information

 

0405
Our Services

 07

FAQ

1.Q:Are you  factory or trading company ?

A:We are a trading company, and we have a long-term cooperation factory in Huailai.

2.Q:Where is your factory and trading office located ?How can I visit there ?

A:Our factory is located in Huailai county,Hebei Province,China,about 2hours from Beijing Capital International Airport.

Our trading office is located in Hongjunying South Rd,Chaoyang District,Beijing 100107,China.About half an hour from Beijing Capital International Airport

3.Q:What is the main products of your company?

A:We mainly produce:borosilicate galss tubing ,borosilicate gass rod ,and borosilicate glassware.

4.Q:How can I get some samples?

A:We are honored to offer you samples ,length about 20cm is free .Customers should pay for the shipping freight.

5.Q:How does your factory do regarding quality control ?

A:Quality first is our motto ,Workers always attach great importance to quality controlling from the very beginning to the very end .

 


60658363969
0.0653 s.