nude wrestling with daisy ducati getting nude and roughed up by jack friday as winner fucks loser

Collection exhibition Online Message Website map Welcome to Changzhou Tianzhan Steel Pipe Co., Ltd! Main production: seamless steel pipe, precision steel pipe, seamless steel pipe, seamless pipe and other products!

 Changzhou Tianzhan Steel Pipe Co., Ltd

17 years focus on customized alloy seamless steel pipe manufacturers Tianzhan - create every steel pipe with ingenuity

151-6111-7830

0519-88789990

 Tianzhan gathers information

Why Shandong steel pipe is so cheap, but also buy Jiangsu steel pipe?

Back to list Source: Release date: December 24, 2020

Although it has reached the end of the year and is near the end of the year, it has always received calls from customers to inquire about the technical problems of seamless steel pipe. These customers originally purchased from Shandong, but they came to us for technical support. This reminds me of a customer who asked me before, Shandong steel pipe is so cheap, why buy Jiangsu steel pipe, want to buy your home? What's more important than Shandong? Is it worth it? Today, the editor will answer these questions.


1、 Jiangsu steel pipe's raw material price is higher, the quality is more guaranteed


Why is Jiangsu steel pipe more expensive than Shandong steel pipe First of all, the quality of the raw material used in Jiangsu steel pipe is more guaranteed. Tianzhan steel pipe is made of Jiangsu Youte round steel, Zhongtian steel and Huaigang. The same material is 45 mm and diameter φ 50% tube blank steel, Zhongtian and Huaigang for raw material refining process outside the furnace The refining time is longer, the harmful impurities such as P and s are less, and the tube blank is more pure The quality is better and the price is naturally higher than that of tube blank steel in North China. The seamless steel pipe produced by using this kind of excellent tube blank steel In the later stage of steel tube deformation, the probability of cracking, pits and pits on the surface is smaller

Secondly, Tianzhan steel pipe production and sales of steel pipe, each batch is attached Round steel warranty and Steel pipe warranty Two guarantees Strict requirements for traceability in ISO9001 and iatf16949 But Shandong steel pipe often can not do these two guarantees.

 Round steel warranty

Round steel warranty

 Steel pipe warranty

Steel pipe warranty


2、 The production process and technology are different


1. First of all, many steel pipe plants in Shandong and Jiangsu have only one process, such as finishing rolling, and other processes such as piercing, pickling, phosphating and saponification, heat treatment are outsourced, so the quality is difficult to control. And Tianzhan steel pipe is a rare one, with It is a steel pipe factory with the whole process of piercing, pickling, phosphating and saponification, heat treatment, finishing rolling, cold drawing, straightening, flaw detection and mechanical property inspection It is rare to have both cold drawing and finishing rolling processes. The whole process production process ensures that each batch of steel pipe can be traced from the source and each process, and the quality can be controlled.

 Whole flow chart of steel pipe production

Whole flow chart of steel pipe production


2. In order to save time and cost, Shandong steel pipe works has a large amount of deformation every time in the finishing rolling process. As a result, the steel pipe product is not only poor in precision, but also easy to crack after processing. Although the steel pipe is cheap, the loss caused by processing cracking is even greater. The finishing rolling and cold drawing process adopted by Jiangsu steel pipe works can reduce the deformation of seamless steel pipe Better mechanical properties, tensile, yield, extension can be customized   This is it. Why is Jiangsu steel pipe more expensive than Shandong steel pipe One of the reasons.

 Mechanical property test

Mechanical property test


3、 Jiangsu steel pipe works better after sales service


Good service is not only reflected in the pre-sale, but also in the after-sale. If there are problems in the use of steel pipes, it is a test whether technical support can be provided to find out the causes, improve the process and manufacture more suitable products The technology and experience of a steel pipe plant is a major indicator. Many of our customers have problems with the use of Shandong steel pipe, but Shandong steel pipe factory lost sales, reneged on the contract and had no way to complain, which led to the scrapping of the whole batch. The consequence is not only the loss of money, but also the delay of the delivery time and reputation of our products. Later, he found us and promised to discuss problems together and provide full technical support.


Our technicians are not only familiar with the steel pipe manufacturing process, but also have a good understanding of the later processing technology of seamless steel pipe, such as cold bending, hot bending, electrophoresis, surface spraying, etc., so as to develop and produce seamless steel pipe more suitable for customers.

That's it Why is Jiangsu steel pipe more expensive than Shandong steel pipe Do you still think Jiangsu steel pipe is expensive? Or is it worth it? Welcome to pay attention to and leave a message on Tianzhan steel pipe. We will bring you useful encyclopedia knowledge of steel pipe as always.

Consultation hotline

151-6111-7830
vrallure busty ebony beauty daizy cooper plays with her sex toys in virtual reality daddy4k papa intelligent ne perd pas sa chance davoir des relations sexuelles avec ses fils nouvelle copine reality junkies petite alexis tae gets turned on by her cop stepdads jay smooth big cock daddy4k sweetie and boyfriends old dad celebrate her birthday with sex loan4k le banquier est pret a aider une fille si elle donne quelque chose en retour