First, look at the packaging
Look at the package and see the certificate. General regular manufacturers, whether it is pure imported or domestically produced, will use the Chinese or English-language control word mark for packaging. For packaging, all English must be careful, and it is likely that small manufacturers will deceive consumers as “smoke bombsâ€. In order to maintain their reputation, regular manufacturers generally use environmentally-friendly raw materials that comply with national regulations. The behavior of small factories is difficult to guarantee.
Second, smell the smell
When buying wood material, you can immerse a small sample in boiling water and smell it is stimulating. Green building materials have low formaldehyde emission and generally do not smell pungent. If you smell a strong irritant or even make your eyes feel uncomfortable, it proves that the substrate of the floor contains a lot of free formaldehyde. Will pollute the air.
Third, ask the experts
When purchasing some large-scale building materials, many consumers who do not understand the price are easily overcharged by the business. Therefore, before purchasing, it is advisable to consult relatives and friends who are knowledgeable and ask them to recommend it.
Basic Building Materials Building Materials Knowledge Building Materials Purchase
Sameless pipe
Seamless pipe as the name suggests is a pipe without a seam or a weld-joint in contrast to Seam or Welded pipe. In a Seam or Welded pipe, the seam or the weld-joint is the weaker part of the pipe limiting the strength of the pipe to the strength of the weld-joint. Whereas the seamless pipe does not have any such joint and thus has uniform structure & strength all over the pipe body.
Some commonly used models are
Api5L Seamless Pipe ,A53 Gr.B Seamless Pipe,Astm A106 Gr.B Seamless and so on.Advantage
The seamless pipe can withstand higher pressure, higher temperature, higher mechanical stress & corrosive atmosphere and find wide applications in Oil & Gas.
Applications
Applications in petrochemical, chemical, chemical, chemical fertilizers, electric power, automobiles, bearings, machinery and structures.
API 5L Seamless Steel Pipe ASTM A106/A53 GR.B seamless steel pipe
Standard of carbon seamless steel pipe

Packaging & Delivery
Packaging Details
Plastic caps on both ends, Steel bundle, Woven bag or acc. to customers' request.
Delivery Time
15 days after receiving deposit
Seamless Steel Pipe
Seamless Steel Pipe,A53 Gr.B Seamless Pipe,Api5L Seamless Pipe,Astm A106 Gr.B Seamless
HEBEI CHENGYUAN PIPE INDUSTRY GROUP CO.,LTD , https://www.hbcytube.com