safety elements, square elements). SFG can also develop and design new products to meet customer's requirements.Product Advantage
To evaluate a filter from its appearance and life is not complete. SFG runs after reasonable design and its high performance can effectively extend the life of your

SKG Series TCI rock bits
RUBBER SEALED BIT WITH ROLLER BEARING

SKG series TCI rock bit is designed with roller bearing and rubber O-ring seal . This bit can achieve longer footage and higher ROP when drilling under medium to low WOB and high RPM.
The size range of SKG series bit is from 10 5 /8

SKW roller cone bit
NON-SEALED BITS

SKW series bit is non-sealed roller bearing bit .This is suitable for surface hole drilling for every kind of wells and upper sections with good drillability .It is with the advantages of low cost and high ROP ,ect.
The size range of SKW series bit is from 14

GJ/GJT TCI tricone bits
METAL SEALED BIT WITH ROLLER BEATING

GJ/GJT series TCI tricone bit adopts metal seal with roller bearing ,which can drill stably with middle to low WOB and middle to high RPM,it is the ideal choice for higher part of well section.
The size range of GJ/GJT series bit is

SKH Series Roller cone bits
RUBBER SEALED BIT WITH HOURNAL BEARING

SKH series Roller cone bit adopts journal bearing rubber O-ring seal along with more aggressive cutting structure. This bit is with the features of longer footage and higher ROP and is the ideal choice for drilling applications

SUPER-MD series rock bits

ULTRA-HIGH SPEED MOTOR BIT
In consideration of this high speed drilling condition, our factory specially developed the SUPER-ND ultra-high speed motor bit that is designed with roller –journal composite bearing and metal face seal .The rock bit is also equipped with

IADC：M223

钻头尺寸（size）in 喷嘴数Quantityof Blade） 保径长度GaugeLength）in API接口（API Connection(inch)） 钻压Weighton bit）KN 转速（Rotary Speed(RPM)）r/min 泥浆排量(Flow Rate(L/S)）
6 1/2’’ 6 1.5 3 1/2 20-80 50-200 12-25
7 7/8’’ 6 2 4

SUPER-MD series tricone bits

ULTRA-HIGH SPEED MOTOR BIT
In consideration of this high speed drilling condition, our factory specially developed the SUPER-ND ultra-high speed motor bit that is designed with roller –journal composite bearing and metal face seal .The tricone bit is also equipped

MD Series rock bit
High speed motor bit

Working condition of the rock bit in directional and horizontal drilling applications is quite different than in vertical well drilling .our factory’s new MD series motor bit features high RPM , Better gage protection and stability ,higher reliability,

Compared with the former axial roof fan, this series fan is a new product and it has the characteristics of high efficiency, low noise, corrosion resistance and high precise stabilization.
It has large amount of wind and lower pressure than centrifugal fan. So it is applied to such occasions with

GF-63 twin-tube extrusion lines
•First-class quality of the experience into the twin-tube extrusion die.
•Because of the perfect two-pipe vacuum sizing system.
•Independent control of the overall structure of the twin-tube traction and synchronous cutting device.
•With accurate and free

Description
Product group: Piston seal
Design: K compact seal
Profile no.: 22
Specification: Z suitable for two-sided pressure load
Seal material: NBR fabric NBR F 90 3005
Seal body: NBR 80 3001
Guide rings: PA

Operational application limits
Pressure (MPa): ≤ 40
Temperature (°C): -30