E-mail:raysales2@raysteeltube.com    Mol+86-150-6196-5293
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PRODUCTION & QUALITY
We not only provide high-quality products, but also provide quality services.
You are here: Home » About Us » Quality Inspection
QUALITY INSPECTION
MEASURE IN ACCORDANCE WITH THE STANDARD TESTING,
PRODUCT QUALITY ASSURANCE.
THE PRODUCTION FLOW CHART
Steel bar form steel plant→Physical and chemical inspection→Surface treatment→Cutting→Heating→Hot piercing→
Shell storage→Pickling and lubrication→Cold rolling→Heat treatment→Pickling and lubracation→Cutting→Punching→
Cold drawn→Size inspection→Outer and inner surface cleaning→NBK&GBK→Mechanics inspection→Chemical inspection→

Straightening→Trim →Black phosphated heatment→Edy current testing→Antirust oil painting→
Straightening→Trim →Cleaning →Edy current testing→Antirust oil painting→
Straightening→Trim →Polishing(if required)→Edy current testing→Antirust oil painting→


Print→Packing→Finished storage→Delivery with quality certificate
1).We adopt special techniques and special skill in the acid cleaning process to deal with the place where it’s easy to form fold crevice;
2).We organized process,especially annealing treatment in a severely technical manner;
3).In respect with lubrication,we adopt the brand-new treating process in the world,and put the surface quality of our products under strict control in orderto prevent causing surface crack.

CONTACT US

Add : Chuangsheng Road. Luoyang Industrial Zone,Luoyang Town, Wujin District, Changzhou city. Jiangsu Province, China

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CONTACT INFO

 Tel  :+86-519-88522885
 Tel : +86-519-85585188
 Fax : +86-519-88522598
 E-mail : raysales2@raysteeltube.com
 Skype :+86-150-6196-5293

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