Chemical experiment of glass test tube with high temperature resistance of flat test tube wood plug

The dimensions are all measured by hand, so there may be some errors. Please contact the customer for the specific freight.

	Brand Name  :  HaoQi
	Product Name :  Test tube
	Material :  Glass
	Color:   Transparent or clean
	Place of Origin :  Jiangsu, China
	Size: 16*65mm 18*80mm 22*90mm 30*120mm

Precautions for use
(1) Do not exceed 1/2 of the test tube capacity when filling the solution, and do not exceed 1/3 of the test tube capacity when heating.
(2) When dripping liquid into a test tube with a dropper, it should be suspended dropwise and should not extend into the mouth of the test tube.
(3)Take the solid block to the test tube mouth with tweezers, and then slowly raise the test tube to slide the solid into the bottom of the test tube. Do not drop the solid directly to prevent the bottom of the test tube from rupturing.
(4) The test tube clamp is used for heating. When heating a test tube containing solids, the nozzle is slightly downward, and the liquid is tilted about 45 °
(5) Heating should be uniform to avoid bumping or test tube bursting.
(6) Do not quench after heating to prevent cracking.
(7) Preheat when heating to prevent the tube from bursting due to sudden heat.

Jiangsu HaoQi Teaching Instrument Co., Ltd. is a teaching instrument company integrating scientific research, design, production, operation and sales. The company is located in the beautiful Yangtze River - Taizhou, only 100 meters away from the south exit of Beijing-Shanghai and Ningtong Expressway. Our company specializes in the sale of teaching instruments, glass instruments, sports equipment, etc. in primary and secondary schools, science, biology, biology, mathematics, etc. The company was founded in August 1990, formerly known as Taixing HaoQi Teaching Instrument Co., Ltd. After more than 20 years of tempering, Jiangsu HaoQi Teaching Instrument Co., Ltd. was founded in November 2010. The company now covers an area of more than 50 acres. More than 150 people, including more than 20 scientific and technical personnel. The products are exported to more than 20 provinces across the country and are well received by new and old customers. Jiangsu HaoQi Teaching Instrument Co., Ltd., with its unique business philosophy, excellent product quality, flexible and diversified business strategy, fast delivery method and perfect after-sales service system, make more high quality and low price teaching equipment products for education. Career services.

1. How about the Delivery time?

Samples: about 3-7 days.

Mass order: about 25 days after receipt of 30% T/T deposit payment.

2. What kind of payments do you support?

Accept wire transfer, letter of credit, Western Union, electronic check.

3.Do you charge for the samples

According to our company policy, we just charge the samples based on EXW price.
And we will return the samples fee during the next order.

4.Can you produce according to customers' design?

Yes, we are professional manufacturer; OEM and ODM are both welcomed.

1) Silk print logo on the product;

2) Customized product housing;

3) Customized Color box;

4) Any your Idea on product we can help you to design and put it into production.

5.What about the shipping?

We have strong cooperation with DHL, TNT, UPS, FEDEX, EMS, China Air Post.

You also can choose your own shipping forwarder

6.What is the price of the product?

We'll offer you the quotation as soon as possible once receive your inquiry, so don't hesitate to contact us.
We can produce the product under your brand name; also the size can be changed as your requirement.

7.What about your after Sale Service?

1) All products will have been strictly Quality Checked in house before packing.

2) All products will be well packed before shipping.