duplex 2205/F51/S31803 China factory production fasteners din 933 / full threaded hex bolt

Nanjing Xidiou Stainless Steel Co., Ltd.established on July 4, 2002 in Nanjing, is a private processing enterprise of special stainless steel materials. The main products are stainless steel bolts and nuts with steel grades 316L,904OL,254SMO, 1.4529, AL6XN, HasC276, 2205, 2507, non-standard hardware components and other stainless steel materials. 

All of our orders will be inspected by our QC team. We will check the quality during the production time .Also check the quality before shipping . 

1.Before production, we will use spectrometer to test raw material to prevent mistakes

2.Every step QC department will record ,such as raw material cutting dimension, semi-finished product size, quantity , finished item detailed size

3.Before delivery ,detailed inspection report of finished products will present .

4. Beside size, we will check 10% to 20% of total quantity products whether have thread broken ,greasy, marking.packing ect.

5.Before delivery ,we will provide our mill test certificate together with inspection report.

6.Our mechanical property always shows tensile strength ,yield strength ,elongation,hardness, if you need more, just let us know in advance.

our Packing pictures:

Sandy     Phone: 0086-15251818355

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