English1
-
Changzhou YingYuan teach you to identify fake steel pipe
1 high quality tube trademark and printing are standard. Vertical bars 2 inferior steel rebar often wavy. 3 fake steel pipe manufacturer with no driving, so pack is loose. The oval. 4 fake steel pipe material containing more impurities, st...
-
Precision seamless tube standard index
1) the main varieties of precision seamless pipe: DIN series high precision bright precision seamless tube, the hydraulic system for special precision seamless tube, automobile manufacturing special precision seamless tube 2) the main stan...
-
The fundamental pattern of weak steel market has not changed
Crude steel output is high, the market supply and demand contradictions still In the middle of March, Steel Association member companies average daily output of crude steel 1667600 tons, down 0.47% mom; estimate the average daily output of...
-
Precision seamless steel tube market ＂seasonal thaw＂ began
After the Spring Festival, the domestic precision seamless steel tube market development flat steel market, steel prices overall in the downward channel, Steel City show fell hard to rise. And demand for the downstream steel market has not...
-
Identification method of spiral pipe thread
The spiral steel tube method for identifying the most effective is the use of joint rule, this rule is a specific marker of the vernier caliper diameter of external thread root diameter and inner screw thread hole expansion, easy to use, i...