Petrochemical products include plastics, synthetic fiber, synthetic rubber, synthetic detergent, chemical fertilizer, pesticide, etc. Petrochemical products refer to chemicals made from oil or natural gas. Through various processing processes, petroleum can produce petroleum products such as gasoline, kerosene, diesel, lubricating oil, paraffin, asphalt, petroleum coke and liquefied gas, and provide rich raw materials for chemical products such as plastics, synthetic fiber, synthetic rubber, synthetic detergent, chemical fertilizer and pesticide. CAS: 2426-02-0, CAS: 4720-86-9, CAS: 4887-42-7, Cas: 19438-64-3 Henan Youlong Petroleum Engineering Technology Co.,Ltd , https://www.youlongenergy.com
 Screws are generally called wood screws; is the tip of the kind of tip, pitch larger, generally used to tighten wood parts, plastic parts. Mechanical screws, is the front of the kind of screws, the pitch is small, uniform, generally used to fasten the metal, machine parts.Our products has high quality,and long life time.Our  company has passed ISO9001, ISO9001 (CQC) certification, product quality assurance.
Screw application range
1> stainless steel plate, metal plate, galvanized steel plate, engineering installation.
2> metal curtain wall metal light compartment and other indoor and outdoor installation.Â
3> General angle steel, channel steel, iron plate and other metal materials combined installation.Â
4> car trunk, container box, shipbuilding, refrigeration equipment and other assembly works.
5> automobile engine, heavy machinery, garden machinery, petrochemical.
6> aerospace, energy, machinery, chemical, military, metallurgy, mold, hydraulic.
7> motorcycles, sports equipment, cars and many other industries.
8> electronics, electrical appliances, motors, lighting, communications, home appliances, furniture.
Â
Brand  name
CHANGCHUN
Model
CC-519A
Type
Non-standard
Standard type
Non-standard type
Standard number
No
Screw diameter
8mm
SurfaceÂ
chrome
Material grade
Carbon steel 45H
Thread tolerance
6G
Application
machine fastener
Customized
yes
Sample or product
Sample
Screw lengthÂ
CC-113
Â
Â
Â
Â
Shipping and packaging
 Via Ocean shipping
North America, South America about 40 working days
Eastern Europe about 30-40 working days
Southeast Asia about20-30 working days
Africa about 35-45 working days
India, Pakistan about 40 working days
Korea, Japan about 40 working days
Air transport
Other places around 1-3 business days
Packaging: boxes, cartons or plastic bags, or according to customer needs.
Sample serviceÂ
If  you need  sample,you need pay  the  freight.
Customer Service
· 1. No question refund within 3 days.Â
· 2. Well trained and experienced staffs at your service.Â
· 3. Short lead time.Â
· 4. International standard matched
·5. Non-standard / standard / OEM / ODM / customized service provided.Â
· 6. Small Quantity available.Â
· 7. Designed in accordance with customers' request.Â
· 8. Packed and delivered by customers' requirement.
Any more questions or demands, please feel free to contact me!
TEL:+86-0562-668-1767
Our factory
GB/T 65-2000Â Â Â Â Â Â Â Â Â Â
GB/T 67-2000
GB/T 68-2000
GB/T 69-2000
GB/T 70.1-200
 GB/T 70.2-2000
 GB/T 70.3-2000
 GB  71-85
 GB-72-88
 GB-73-85
 GB-74-85
 GB-75-85
 GB/T 77-2000
 GB/T 78-2000
 GB/T 79-2000
 GB/T 80-2000
 GB 83-88
 GB 84-88
 GB 85-88
 GB 86-88
 GB/T 818-2000
 GB 838-88
 GB 839-88
 GB 840-88
 GB 946-88
 GB 947-88
 GB 948-88
 GB 949-88 Â
 GB 2672-86
 GB 2673-86             Â
 GB 2674-86
 GB 5281-86   Â
GB/T 820-2000
GB/T 821-88
 GB/T 822-2000
 GB 823-88
 GB 825-88
 GB 828-88
 GB 829-88
 GB 830-88
 GB 831-88
 GB 832-88
 GB 833-88
 GB 834-88
 GB 835-88
 GB 836-88
GB 13-88
GB 14-1998
GB 15-88
GB 29.2-88
GB 35-88
GB 37-88
GB /T794-93
GB 798-88
GB 799-88
GB 800-88
DIN 125-A Â GB 971-85
DIN 125-B Â GB97.2-85
DIN127-A Â Â GB7244
DIN 127-B Â GB93-87
DIN 912 Â Â GB70-85
DIN933 Â Â GB-5783-86
DIN931 Â Â GB5782-86
DIN934 Â Â GB6170-86
     Castings Mass Production CNC Machining Parts for Car/Bike/Machine/Auto
 Screws are generally called wood screws; is the tip of the kind of tip, pitch larger, generally used to tighten wood parts, plastic parts. Mechanical screws, is the front of the kind of screws, the pitch is small, uniform, generally used to fasten the metal, machine parts.Our products has high quality,and long life time.Our  company has passed ISO9001, ISO9001 (CQC) certification, product quality assurance.
Screw application range
1> stainless steel plate, metal plate, galvanized steel plate, engineering installation.
2> metal curtain wall metal light compartment and other indoor and outdoor installation.Â
3> General angle steel, channel steel, iron plate and other metal materials combined installation.Â
4> car trunk, container box, shipbuilding, refrigeration equipment and other assembly works.
5> automobile engine, heavy machinery, garden machinery, petrochemical.
6> aerospace, energy, machinery, chemical, military, metallurgy, mold, hydraulic.
7> motorcycles, sports equipment, cars and many other industries.
8> electronics, electrical appliances, motors, lighting, communications, home appliances, furniture.
Â
Brand  name
CHANGCHUN
Model
CC-519A
Type
Non-standard
Standard type
Non-standard type
Standard number
No
Screw diameter
8mm
SurfaceÂ
chrome
Material grade
Carbon steel 45H
Thread tolerance
6G
Application
machine fastener
Customized
yes
Sample or product
Sample
Screw lengthÂ
CC-113
Â
Â
Â
Â
Shipping and packaging
 Via Ocean shipping
North America, South America about 40 working days
Eastern Europe about 30-40 working days
Southeast Asia about20-30 working days
Africa about 35-45 working days
India, Pakistan about 40 working days
Korea, Japan about 40 working days
Air transport
Other places around 1-3 business days
Packaging: boxes, cartons or plastic bags, or according to customer needs.
Sample serviceÂ
If  you need  sample,you need pay  the  freight.
Customer Service
· 1. No question refund within 3 days.Â
· 2. Well trained and experienced staffs at your service.Â
· 3. Short lead time.Â
· 4. International standard matched
·5. Non-standard / standard / OEM / ODM / customized service provided.Â
· 6. Small Quantity available.Â
· 7. Designed in accordance with customers' request.Â
· 8. Packed and delivered by customers' requirement.
Any more questions or demands, please feel free to contact me!
TEL:+86-0562-668-1767
Our factory
GB/T 65-2000Â Â Â Â Â Â Â Â Â Â
GB/T 67-2000
GB/T 68-2000
GB/T 69-2000
GB/T 70.1-200
 GB/T 70.2-2000
 GB/T 70.3-2000
 GB  71-85
 GB-72-88
 GB-73-85
 GB-74-85
 GB-75-85
 GB/T 77-2000
 GB/T 78-2000
 GB/T 79-2000
 GB/T 80-2000
 GB 83-88
 GB 84-88
 GB 85-88
 GB 86-88
 GB/T 818-2000
 GB 838-88
 GB 839-88
 GB 840-88
 GB 946-88
 GB 947-88
 GB 948-88
 GB 949-88 Â
 GB 2672-86
 GB 2673-86             Â
 GB 2674-86
 GB 5281-86   Â
GB/T 820-2000
GB/T 821-88
 GB/T 822-2000
 GB 823-88
 GB 825-88
 GB 828-88
 GB 829-88
 GB 830-88
 GB 831-88
 GB 832-88
 GB 833-88
 GB 834-88
 GB 835-88
 GB 836-88
GB 13-88
GB 14-1998
GB 15-88
GB 29.2-88
GB 35-88
GB 37-88
GB /T794-93
GB 798-88
GB 799-88
GB 800-88
DIN 125-A Â GB 971-85
DIN 125-B Â GB97.2-85
DIN127-A Â Â GB7244
DIN 127-B Â GB93-87
DIN 912 Â Â GB70-85
DIN933 Â Â GB-5783-86
DIN931 Â Â GB5782-86
DIN934 Â Â GB6170-86
Fine chemicals:
Fine chemical products are also known as special chemicals. Including surfactants, pesticides, dyes (including pigments), pharmaceuticals, additives and catalysts. In addition, there are coatings, adhesives, photosensitive materials, magnetic recording materials, chemical reagents, spices, food and feed additives, oilfield chemicals, water treatment agents, oil additives, etc.
Pesticides: they are divided into insecticides, fungicides, herbicides, acaricides, rodenticides and plant growth regulators. The first three categories account for the vast majority of the total output.
Medicine: one of the traditional fine chemical industries, which mainly refers to the drugs made by chemical or biochemical synthesis, including the production of APIs and preparations (tablets, powders, injections, etc.).
Dyes: mainly used for coloring natural fibers and synthetic fibers.
Pigment: mainly used for coloring plastics, coatings, inks, building materials, etc.
Castings Mass Production CNC Machining Parts for Car/Bike/Machine/Auto
Model NO.: CC-520A
Grade: 8.8
Custom: Yes
Drive: Self-Tapping
Screw Diameter: 8mm
Surface: Galvanized
Screw Length: 3mm-110mm Available
Trademark: CC
Transport Package: General Export Package/Require to Customer
Specification: M8
Origin: China
HS Code: 7318150000
Model NO.: CC-520A
Grade: 8.8
Custom: Yes
Drive: Self-Tapping
Screw Diameter: 8mm
Surface: Galvanized
Screw Length: 3mm-110mm Available
Trademark: CC
Transport Package: General Export Package/Require to Customer
Specification: M8
Origin: China
HS Code: 7318150000
     Castings Mass Production CNC Machining Parts for Car/Bike/Machine/Auto