
According to relevant media reports, due to the cold weather of the financial crisis in recent years, the chills around the machine tool equipment foundry industry in China have been difficult to disperse, resulting in a significant drop in the export profits of domestic machine tool casting products. Recently, according to the relevant regulations of the state, adjustments have been made to the policy of tax exemption for foreign-funded enterprises importing machine tool casting equipment. This means that foreign companies that import these equipment will not be able to enjoy the exemption from customs duties and value-added tax as they have in the past. This is an intangible protection for the domestic foundry industry, providing a buffer zone in a fierce market environment.
It is reported that after the adjustment of policies, newly approved foreign-funded projects will be subject to tariffs if they import CNC machine tool foundry products and pressure forming machines listed in the “Not for Tax Exemption from Domestic Capitalâ€. In other words, foreign-funded enterprises can only enjoy the relevant preferential treatment by importing CNC machine tools and pressure forming machines whose domestic existing technologies cannot meet the requirements of the index. This is undoubtedly a rare opportunity for the vigorous development of China's machine tool casting equipment. China's machine tool foundry equipment is in urgent need. Seize the opportunity to promote the better development of domestic machine tool casting equipment.
Drilling equipment is used for drilling and construction of this specific conditions of the mechanical devices and equipment, divided into drilling equipment and Drilling tools two categories. Drilling equipment mainly by drilling rig, mud pump and mud purification equipment, mud mixer, drilling tower and other components,and drling tools includes driling pipe, adapter/kelly and collar.
Friction welding drill pipe and adapter
Friction welding drill pipe and adapter are in accordance with API SPEC 5DP and SY/T5561-2008 Specifications.The steel grade are DZ250,R780,G105,S135 that are after partly or overall heat treatment.The adapter part adopts thermal refining to superior alloy steel 35CrMo or 4137H that`s after thread hardening treatment and phosphating to better antiseize.It also can be produced upon customers` requirements.
Technical specifications
Drill Pipe Diameter |
Upset Type |
RSC Model |
Steel Grade |
mm Wall Thickness |
mm External diameter of upset end |
mm Internal diameter of upset end |
|
mm |
in |
||||||
60 |
2 3/8 |
EU |
NC26 |
DZ50,R780 |
6/7.11 |
65.1 |
46.10 |
EU |
NC26 |
G105,S135 |
7.11 |
65.1 |
39.67 |
||
73 |
27/8 |
EU |
NC31 |
DZ50,R780 |
9 |
81.0 |
54.64 |
EU |
NC31 |
G105,S135 |
9.19 |
81.0 |
50.80 |
||
89 |
31/2 |
EU |
NC38 |
DZ50,R780 |
10 |
98.4 |
66.09 |
EU |
NC38 |
G105,S135 |
9.35 |
98.4 |
63.50 |
||
114 |
41/2 |
IEU |
NC46 |
DZ50,R780 |
8 |
127.0 |
92.00 |
IEU |
NC46 |
G105,S135 |
8.56 |
119.1 |
73.02 |
||
EU |
NC50 |
G105,S135 |
8.56 |
127.0 |
90.47 |
||
127 |
5 |
IEU |
NC50 |
DZ50,R780 |
10 |
130.2 |
90.47 |
IEU |
NC50 |
G105,S135 |
9.19 |
130.2 |
90.47 |
||
139.7 |
51/2 |
IEU |
51/2FH |
G105,S135 |
9.17 |
144.5 |
96.82 |
168 |
65/8 |
IEU |
65/8FH |
G105,S135 |
9.19 |
176.2 |
135.00 |


Drilling Machinery,Drilling Tools,Parts Of Drilling Machinery,Fittings Of Drilling Equipment
SHIJIAZHUANG LONGXUAN TRADING CO., LTD , https://www.longxuanmachines.com