ASTM A792 Factory Dx51d PE Coating Prepainted Steel Coil Pre Painted Steel Roll PPGL

ASTM A792 Factory Dx51d PE Coating Prepainted Steel Coil Pre Painted Steel Roll PPGL

Several polishing methods of galvanized coil

Smooth and flat coils are the mainstream products in the current coil market, and polished coils are more and more widely used. Introduce several polishing methods of galvanized coil:

First: Mechanical Polishing of Rolled Sheets

Mechanical polishing of rolled sheets refers to the polishing method of smoothing the surface of the rolled sheet by cutting, forming and deforming the raised parts of the rolled sheet surface. Normally, mechanical polishing is mainly done by hand, mainly using whetstone strips, hair wheels, tools such as sandpaper. It is worth mentioning that in the mechanical polishing process of sheet bending, ultra-precision polishing is a method to obtain deformation and bending of sheets with high surface quality.

Second: chemical polishing of rolled sheets

The chemical polishing of the rolled sheet refers to the chemical reaction method in which the convex part of the surface of the rolled sheet reacts preferentially and dissolves in the same plane as the concave part of the surface, and finally a rolled sheet with a smooth surface is obtained. The biggest feature of chemical reaction polishing plate is that it does not need more complicated equipment and has high polishing efficiency. However, the first problem to be solved in chemical polishing of rolled sheets is the preparation of polishing liquid

Third: Electrolytic polishing of rolled sheets

Refers to a method of selectively dissolving the protruding parts of the surface of the rolled sheet by spotting a solution to make the surface of the rolled sheet smooth. The principle of electropolishing is actually similar to that of chemical polishing, but the effect of electropolishing is better. The electropolishing process is generally divided into two steps, namely macroscopic and microscopic leveling

Fourth: Ultrasonic polishing of rolled plate

Ultrasonic polishing of rolling plate refers to placing the rolling plate in the abrasive suspension, so that the abrasive is vibrated by ultrasonic waves, thereby grinding the surface of the rolling plate. Surface deformation.

Packaging & Shipping

Quality Inspection

1. Q; What's the payment terms of your product?
A: FOB: 30% by T/T in advance+70% Balance by T/T before shipment.
A: CFR/CIF: 30% by T/T in advance+70% Balance Against the copy of BL within 3 days.
A: 100% irrevocable LC.
2. Q; What's the delivery time?
A: It will take 20-30 days to be ready for shipment based on your demand quantity.
3. Q: Do you have any certificates of your products?
A: We have ISO 9001 certificate and SGS quality certificate.
4. Q: Is there any discount for the product?
A: Could you let me know your target price and demand quantity, then i will try my best to apply for you.
5. Q: What is the MOQ ?
A: MOQ is 20 tons each size;
6 Q : which kinds of products do you have advantages?
A:Our advantage products are GI , GL , PPGI coils/strip/corrugated roofing sheet.
7 Q: you are the manufacture or trading company ?
A:we are the manufactuer,we have our own production line.
A: We are Factory. High quality products with most economic price can be provided to you.
8.Q:Please let me know your FOB and CIF price.
A:Please leave your email or phone number and the specification of you need, we will give you the best price soon.
9.Q:Manufacturing and delivery time
A:about 25 working days after receive the deposit.
A:10-30 days after receiving the down payment or L/C.
10.Q:Payment terms
A:30% TT in advance, balance should be paid against BL copy or before shippment, and LC at sight.
A:Down payments 30% TT and balance 70% TT or L/C.
11.Q:Which market you doing
A:Our main markets are Africa, Middle East, Southeast Asia and South America.
12.Q:Are you exporting to Kenya?
A:Yes, we have good business in Kenya, Please leave your email or phone number we will send you the BL copy.
13.Q:Can we visit your factory ?
A:Warmly welcome once we have your schedule we will pick you up .
14.Q:How can we get the offer?
A:Please offer the specification of the product,such as material,size,shape,etc.So wecan give the best offer.
15.Q:Can we get the some samples?Any charges?
A:Yes,you can get available samples in our stock.Free for real samples,but customers need to pay the freight cost.
16.Q: How do you make our business long-term and good relationship ?
A:We keep good quality and competitive price to ensure our customers' benefit.
A:We respect every customer as our friend and we sincerrly do business and make friends with them, no matter where they come from.