Quality System

TS16949  ISO9001:2008

Mission statement

● Measuring our performance in areas which contribute to our customer's competitiveness.

● Creating systems which allow us to repeat success with minimal variance. 

● Discovering ways to work more efficiently, in order to increase value to customers with the least cost. 

● Treating every customers and employees with respect and diginity, recognising that people are the key to our success. 

Quality Service = Quality Products

At casting products, customers receive our complete attention. All of our efforts are directed to make sure that customers needs are completely satisfied. If the way we work is not quite fit the way you work, we'll adjust accordingly. If customers have unexpected problem or special request, we will take extra effort to handle it quickly and efficiently. 

At longxing, quality control is an active, not reactive, function of manufacturing. Quality assurance starts the minute raw materials come in the door and continues through every stage of the casting process. We achieve part-to-part consistency, so the last casting is the same high quality as the first.

All our manufactures have quality control systems consistent with ISO 9001:2008 and TS16949:2009 quality control systems.Continuing statistical process control and process capability improvement is applied for all products manufacturing process. Our commitment and continuous effort in improving product quality has established our image as a high quality manufacture and supplier.

We aim to be world class, committed to customer satisfaction & to encourage the spirit of leadership amongst our dedicated team by creating a healthy environment for continuous growth, profit and prosperity.

We provide various test facilities as mentioned under: 

•  Chemical analysis 

•  Tensile Strength 

•  Yield Strength 

•  Elongation rate 

•  Shrinkage rate 

•  Impact Test 

•  Hardness Test 

•  Metallography 

•  Non-Destructive tests(N.D.T.):

•  Dye-Penetrant

•  Ultrasonic(UT)

•  Magnetic particle(MT).

•  Radiography(RT)

•  surface roughness test

•  Video Measurement

•  Coordinate Measuring test(CMM)

Testing Equipment

Direct-Reading Spectrometer(F20)
Test the chemical composition of material.

Direct-Reading Spectrometer



Tension Tester(WEW-600)
Test mechanical properties of material including:
tensile strength, yield strength, elongation rate,        shrinkage rate

Impact Test Machine(JB-300,JB-300B)
Test the impact physical property of material


Low temperature Chamber For
Impact Specimen (CDW-60)

Used to low down the temperature
of specimen for impact test.
Hardness Test machine(HB-3000,HBE-3000)
Test the Brinell hardness of material.

Rockwell Hardness Test

Machine (HR-150A)

Test the Rockwell hardness of material.


Portable Hardness Tester

Test the Brinell hardness of 


Metallographic Microscope


Analyse Metallographic structure of material.

Ultrasonic Testing Machine


Inspect the internal defects



Ultrasonic Testing Machine(HS600)

Inspect the internal defects


Portable Magnetic Particle Tester

Test the defects on surface & sub surface 

of metal products(like cracks)

Magnetic Particle Testing Machine


Magnetic Particle Testing Machine
Magnetic Particle Testing Machine

Contact infrared thermometer

Test the temperature of melted 



Contact infrared thermometer
Test the temperature of melted steel.
Surface Roughness Tester[SRT-1(F)SJ-210]
Test the roughness of machined surface.


Coordinate Measuring Machine(DRAGON875,MQ8106)
Test the geometric dimension, shape and position of the object.
Video Measurement Machine

est the overall dimension and 

surface shape for the complex part.


X-ray tester
Inspect the internal defects
Meterage worktable

Physical Property & Non-Destructive

Test Center(room A)