Drilling Steel Pipes/Drilling Steel Pipe are produced by Seamless Cold Drawn Method, with steel grade of 4140, 30CrMonSiA, 37Mn5, 45MnMoB etc.
Heat Treatment is: Q+T
Including parts of:
Wire-Line Drill Rods
Core Barrel Tubes,
Casing and Couplings
Drill Rods, inner and outer tubes of the core barrel are main components of the wireline core drilling facilities, which is used in the mining and geological explorations.
Our Steel Tubes are used in Wireline Core Drilling systens to collect mineral samples from dept of undergound 3000meters, the quality is accepted and approved by our customers who are producing Wireline Core Drilling Facilities.
Surface treatment: Pickling, Phosphating and Passivating
Drilling Steel Pipes Drilling Steel Pipes,Carbon Steel Drilling Pipes,Mining Drilling Pipe,Oil Drill Pipe,Oval Torich International Co.,Ltd--The Steel Tube Maker , http://www.chinasteeltubepipe.com
In April, China's automobile production decreased by 8.93% from the previous month, up 0.59% year-on-year, down 8.25 percentage points from the same period of last year; sales decreased by 10.98% from the previous month and down 0.49% year-on-year. Among them: passenger car production decreased by 9.04%, up 5.20% year-on-year; sales decreased by 10.78%, up 3.72%. Commercial vehicle production decreased by 8.29% month-on-month and 18.63% year-on-year; sales decreased by 12.02% quarter-on-quarter and 17.61% year-on-year.
From January to April, automobile production and sales increased by 4.12% and 2.77% year-on-year, down 1.14 percentage points and 1.13 percentage points from the first quarter, down 4.87 percentage points and 6.30 percentage points from the same period of the previous year. Among them, passenger car production and sales increased by 9.35% and 7.67% year-on-year; commercial vehicle production and sales decreased by 18.50% and 19.13%.
In April, the production and sales volume of automobiles was basically the same as that of the same period of last year; the growth rate of production and sales of passenger vehicles declined; the production and sales of commercial vehicles continued to decline; the market of passenger vehicles in China continued to grow; the decline of automobile exports continued to expand; the concentration of industry continued to maintain a high level; The growth rate of major economic efficiency indicators of the industry declined.
China's automobile production and sales fell in April 2015
Abstract In April 2015, automobile production and sales decreased slightly from the previous month; output growth slowed down year-on-year, and sales volume decreased slightly year-on-year. From January to April, the growth rate of automobile production and sales continued to slow down. In April, China's automobile production decreased by 8.93% from the previous month, a year-on-year increase of 0.59%, which was 8 times lower than the same period of the previous year...
In April 2015, the production and sales of automobiles decreased slightly from the previous month; the growth rate of output decreased year-on-year, and sales volume decreased slightly year-on-year. From January to April, the growth rate of automobile production and sales continued to slow down.