Zhishang Steel-Galvanized & PPGI Steel Coil | Stainless & Carbon Steel Supplier

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15 2026-09: Q235, A36, S235JR, SS400: Four Names for (Almost) the Same Steel

Q235, A36, S235JR and SS400 are near-equivalent carbon structural steels from GB, ASTM, EN and JIS. Where the crosswalk holds, where it breaks, and how to handl···

15 2026-09: Packing Steel for the Ocean: What Actually Happens Before Your Coil Enters the Container

How we wrap, brace and mark steel coils and bundles for ocean freight - moisture barriers, timber cradles, lashing and the details that decide whether steel arr···

14 2026-09: Zinc Coating Weight, Explained: What Z100, Z275 and AZ150 Actually Mean

What do Z100, Z275, AZ150 and G90 actually promise? How coating mass in grams per square metre is defined, verified, and matched to the environment the steel wi···

14 2026-09: Your Coil Doesn't Have to Be 1250mm: Notes From Our Slitting and Cut-to-Length Line

Master coils come off the mill at 1250mm and your machine rarely wants that width. How our slitting and cut-to-length line turns a full-width coil into the size···

13 2026-09: Weathering Steel: Why the Rust on Purpose Actually Protects

How the corten patina forms, where weathering steel earns its price, and the chloride, drainage and galvanic conditions where it fails.

13 2026-09: Mill Test Certificates: What's Actually on the Paperwork We Ship With Your Steel

A plain-language guide to the mill test certificate that ships with every coil: heat numbers, chemistry, coating weight, and when to push back.

11 2026-09: Spangle, Skin-Pass and Passivation: Reading the Surface of a Galvanized Steel Coil

Two coils arrive at the same yard on the same week. Both are DX51D, both are marked Z275, and the price per ton is within a few dollars. When the wrap comes off···

11 2026-09: Stock or Mill Run? How We Decide What Sits on Our Floor

If you have ever emailed us to ask whether we have a certain gauge of galvanized on the floor, and the answer came back as "partly", this post is for you. Stock···

10 2026-09: Printed and Patterned Color Coated Coil: How Wood Grain and Brick Patterns Get Onto Steel

How printed color coated coil is made on a roller train, why abrasion and bend performance decide quality, and what to specify before ordering patterned PPGI.

10 2026-09: What We Ask Before We Quote: The Details That Decide Your Steel Price

Before we quote a steel order we confirm grade, coating mass, tolerance, processing and packing. Here is the checklist we run through and why each line changes ···

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Zhishang Steel Co., Ltd

Zhishang Steel, specializing in domestic steel products trade, warehousing, processing and other services. The team has four service teams: Shandong Zhishang Steel Co., LTD., Shandong Zhiyiheng Trading Co., LTD., Tai 'an Zhishang Economic and Trade Co., LTD., Shandong Zhishang Steel Structure Co., LTD. Mainly engaged in steel coil, coated, stee···

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Q235, A36, S235JR, SS400: Four Names for (Almost) the Same Steel

Packing Steel for the Ocean: What Actually Happens Before Your Coil Enters the Container

Zinc Coating Weight, Explained: What Z100, Z275 and AZ150 Actually Mean

Your Coil Doesn't Have to Be 1250mm: Notes From Our Slitting and Cut-to-Length Line

Weathering Steel: Why the Rust on Purpose Actually Protects

Mill Test Certificates: What's Actually on the Paperwork We Ship With Your Steel

Spangle, Skin-Pass and Passivation: Reading the Surface of a Galvanized Steel Coil

Stock or Mill Run? How We Decide What Sits on Our Floor

Printed and Patterned Color Coated Coil: How Wood Grain and Brick Patterns Get Onto Steel

What We Ask Before We Quote: The Details That Decide Your Steel Price

Zhishang Steel Co., Ltd