din 7504 sudin 7504 super duplex f55 thép không gỉ lục giác mặt bích vít tự khoan

Mô tả Sản phẩm

1. Finish: Zinc plated(clear/blue/yellow/black), H.D.G,Nickel,chrome,black oxide,etc.

2. Size: M2-M20 6~200mm or according to client's requirement

3. Standard: DIN 7504

4. Certification:DIN,ISO,GB,BS,JIS, etc

FINISH FOR HEX FLANGE HEAD SCREW

Different fittings different finishs request , suitable finishs can make WARSHERS keep nice surface and anti-rust .

1) Zinc .
this is the most popular treatment , the usual color cover black , silver , yellow and white . more colors see below color card .

2) Nickel .
this is more good finish than zinc and is sole color , many parts are plated also in this finish .
3) Oxidization .
this finish is used for part stainless steel pieces , and the most aluminum parts .
4) Polish .
the parts will be more bright after polished , especially for stainless steel parts .
5) Paint .
the color of paint is more abundant , it is more paint in different colors .
6) bronze .
this finish is very few used just for some special pieces .

QUALITY CONTROL

(1) Checking material before feed in

(2) IPQC ( by handle and auto-machined control )

(3) Chemical elements analysis and fhysical testing after post treatment

(4) The second inspection , sort all finished goods by sorting machines if required ;

(5) Packing

(6) Last inspection ( spot checking , packages status , quantity etc )
When all goods are ready , we will make a final inspection for quantity and package’s status .

(7) Delivery

Câu hỏi thường gặp

Q:What is your main products?
A： Our company's main product is washer,fastener,bolts, screw and flange stripe sheet rod pipe.
Q: Bạn là công ty thương mại hay nhà sản xuất?
A: Oue company has our own factory, which is located in Zibo,Shandong.We have a prodessional manufacture and trading group which have over 10 years haedware producing and trading experience.
Q: How to ensure that every process's quality?
A:We especially established quality inspection department to check the every process.
Q:Can we print our own logo ?
A:Yes,Cuz OEM is welcome, we can print logo for you.
Q:What is the quality of your products guarantee?
A:We have passed ISO9001:2008 Quality Management System Certification, CQM Quality Management System Certification and IQNet Quality Management System Certification, If the quality doesn't accord the standard, you can exchange the goods for free.
Q.Can you provide a sample?
A: Yes. We can provide our sample for free.But we need charge the courier fees.
Q. What is your payment method?
A: All kinds payment is available.
Q.How long is your delivery time?
A:We will sent the products within 10 days after received your requst. And the delivery time would be 30-45 days.
Q:How transport?
A:Sea Freight, Air Freight and others Express Delivery is okay.That's up to your requirement.
Q:Do you have after-sales service?
A:Yes, we will provide the best after-sale service.