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Basic Info.
Product Description
LONGYU Wholesale Hiding Gas Pipes Hot Dipped Threaded Process Alloy Seamless Q195 Q235B Zinc Coating Z275 Z100 Galvanised Tube Galvanized Rectangular Steel Pipe




Cold Drawing Process
In the cold drawing process a hot finished seamless tube is used as the material (mother tube), the mother tube, after pretreatment, is cold drawn by the drawing bench to specified dimensions, as shown in the following diagram. the processed tube is subjected to final heat treatment based on its intended end use and then sent to the finishing and inspection process.

Hot Drawn Technology
The seamless pipe product is finally formed by heating the metal billet to a certain temperature (usually above 1200 degrees Celsius), and then using special equipment to pass the billet through multiple roll rolling, perforation, and other processes, and pressing the heated metal billet into a tube.













Q1: Are you a trading company or manufacturer?
We are a processing type company specializing in processing stainless steel for 304/304L large diameter thick wall stainless steel welded pipe and other materials. Prompt delivery, low price, high quality, unique insight into various materials of stainless steel, rolled round, straight seam, ring seam.
Q2: What are the company's main products?
304/304L stainless steel welded pipe processing, Thick-walled stainless steel welded pipe processing, Large diameter stainless steel welded pipe processing, Customizable stainless steel shrimp elbow, etc.
Q3:What are the advantages of your company?
We have many professionals, technical personnel, more competitive prices, and better after-sales service than other stainless steel companies.
Q4: What do you do to control product quality?
Before loading into the container, all products will go through a pre-shipment inspection by our professional QC group. UT test is called is applied to steel material, according to Sep 1921 C/c, D/d, or E/e level based on different types of steel.
Q5:What is your MOQ?
Our MOQ for each order is around 25 Tons(one container), customers can mix different types of steel to reach this quantity.
Q6: Can we visit your company and factory?
Yes, warmly welcome! We can book the hotel for you before you come to China and arrange for our driver to our airport to pick you up when you come.