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Zhangjiagang Zhongzhong Import&Export Co., Ltd.
X Z Z Machinery CO.,LTD. Forged products, seamless pipe and steel plate, their excellent quality and competitive price give your customer a benefit to help with savings.
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Zhangjiagang Zhongzhong Import&Export Co., Ltd. Quality Info

Zhangjiagang Zhongzhong Import&Export Co., Ltd.
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Verified Supplier
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Zhangjiagang Zhongzhong Import&Export Co., Ltd.
Province/State: Jiangsu
Country/Region: China
Contact Person: Nicole Xu
Quality Control

Quality Control Table

Item Process Facility Inspection items Standard

01
Steel material
inpection

Chemical

composition
(EF+LF+VD)

Material standard
surface Ingot inspection
specification
Ingot type and weight Material standard
02
Material
store
Division put

warehous

management

1
Heat Heat furnace Temperature/Time

Heating process

specification
Forging production

procedure

2
Forging Press

Reduction ratio,

forging temperature,

deformation, Surface

and dimensions

Forging

process card
Forging

procedure

3
Heat treatment heat treatment
furnace
heat treatment charts

1st heattreatment

card
Forging

procedure

4
Rough
inpection
Dimensions, apperance,
Mark

Inspection

specification
Forging

procedure

5
Rough UT UT equipment

Single defect,

concentrated

defects
bottom wave

attenuation

UT standard or

customer's
technical

requirements

6
Saw cutting Saw machine Dimension IQC and forging
7
rough turning turning-lathe Dimension,appearance

Rough

machining

drawing

8
UT UT equipment Single defect, concentrated defects
bottom wave attenuation

UT standard or

customer's
technical

requirements

9
Q+T
heat treatment
heat treatment
furnace
heat treatment charts

Heating process

specification

10
Sampling or machining machining tool

rough machining

drawing
sampling

drawing

sample

machining

drawing

11
mechanical
property test
tensile testing machine/
impact testing machine

ambient temperature,

humidity,Test temp.
Sample dimension,

test method

Standard
technical

specification

12
finish
machining
machining
tool

Dimension,

appearance

finish machining

drawing

13
UT UT equipment

Single defect,

concentrated

defects
bottom wave

attenuation

UT standard or

customer's
technical

requirements

14
MT MT equipment Magnetic particle
indication

Test standard or
Technical

requirements

15
Mark Steel seal marking content

Product standard
Technical

requirements
Forging process

16
Final
inspection

Appearance,

dimension, mark
acceptance inspection

Product inspection

specification
Product standard
P.O.

17 Protection/
package
Blasting
Blasting equipment
appearance
coating thickness

Product

standard
Technical

requirements

Item Quantity Inspection
method
Inspector Record

01
Each batch Material cert.&
Re-inspection
IQC Qualified supplier list
/Material inspection record/
Warehouse record
Each piece VT IQC
Each piece Electronic scale warehouse
keeper
02
Each batch VT warehouse
keeper
Process inspectoion
table
1
Each furnace infrared thermometer Furnace
operator
computer data recorder
Heat precedure card
Computer data recorder
2
Each piece infrared thermometer, callipers, ruller and VT Foreman Forging card
3
Each furnace infrared thermomete Foreman computer data recorder
Heat precedure record
Computer data recorder
4
Each piece tape measure/callipers/ ruler
VT
QC Forging inspection card
VT
5
Each piece Contact scanning
method
UT inspector Forging inspection
card
6
Each piece tape measure/ ruler
VT
Foreman Process shift
list
7
Each piece Tape measure/ruller/callipers
VT or Special measuring tool
Operator or
QC
Forging inspection card
rough machining drawing
8
Each piece Contact scanning
method
UT operator Forging inspection
card
9
the same
furnace
infrared thermometer
temperature recorder
Foreman heattreatment card
temperature recorder
10
Each piece vernier caliper
impact test projector
Operator or
QC
Sampling record
11
Each piece Hygrothermograph,vernier caliper
vernier caliper, Extensometer
Test operator test record
test report
12
Each piece Ruller, vernier caliper,dialgage
micrometer etc.
Operator or
QC
finish machining
drawing
13
Each piece Contact scanning
method
UT inspector UT report
14
Each piece yoke method MT inspector MT report
15
Each piece VT Operator or
QC
monotype
16
Each piece

VT, measure tooling, standard,

technical requirements, certficates

FQC Product certificate/
forging inspection process
17 Each piece ultrasonic thickness gauge Operator or
QC
anticorrosive coating
report

Certifications

Zhangjiagang Zhongzhong Import&Export Co., Ltd. Certifications
Standard:
Number: 320582000201008130029S
Issue Date: 2010-08-13
Expiry Date: 2060-08-12
Scope/Range:
Issued By: administrative bureau for industry and commerce
Zhangjiagang Zhongzhong Import&Export Co., Ltd. Certifications
Standard:
Number: 0718663
Issue Date: 2010-08-13
Expiry Date: 2014-08-12
Scope/Range:
Issued By: AQSIQ
Zhangjiagang Zhongzhong Import&Export Co., Ltd. Certifications
Standard:
Number: 320582560283125
Issue Date: 2010-08-13
Scope/Range:
Issued By:
Zhangjiagang Zhongzhong Import&Export Co., Ltd. Certifications
Standard:
Number:
Scope/Range:
Issued By:
Zhangjiagang Zhongzhong Import&Export Co., Ltd. Certifications
Standard: DNV certificate
Number:
Scope/Range:
Issued By:
Zhangjiagang Zhongzhong Import&Export Co., Ltd. Certifications
Standard: LR certificate
Number:
Scope/Range:
Issued By:
Zhangjiagang Zhongzhong Import&Export Co., Ltd. Certifications
Standard: ABS certificate
Number:
Scope/Range:
Issued By:
Zhangjiagang Zhongzhong Import&Export Co., Ltd. Certifications
Standard: API 6A certificate
Number:
Scope/Range:
Issued By:

Company Profile

Zhangjiagang Zhongzhong Import&Export Co., Ltd.

Contact Person: Nicole Xu

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