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How to support the tunnel through the cobblestone?
How to support the tunnel through the cobblestone? Self drilling anchor bolt system support method. The rock formations traversed by the tunnel often encounter complex geological conditions, one of which is the pebble layer. The pebble layer has the characteristics of poor rock crushing and cohes...Read more -
Introduction to steel pipes
As a premier distributor of steel pipe, Liaocheng Jin Ju Feng Import and Export Trading Co., LTD has a strong reputation for sourcing a diverse product inventory. We stock vast quantities in both foreign and domestic steel pipe in both light and heavy walls. You can check our line card for more...Read more -
High Grade High Tensile Blast Furnace Taphole Drill Rod Bit
"Self drilling bars" is a kind of hollow bolt, which is mostly used for relatively stable and complete rock formations. Anchoring agents such as resin, engineering glue, and quick-setting cement are injected from the center of the bolt, which is better than ordinary bolt...Read more -
“Self drilling bars” is a kind of hollow bolt
“Self drilling bars” is a kind of hollow bolt, which is mostly used for relatively stable and complete rock formations. Anchoring agents such as resin, engineering glue, and quick-setting cement are injected from the center of the bolt, which is better than ordinary bolts. Due to the ...Read more -
Brief introduction of carbon steel seamless pipe
Introduction: Carbon steel seamless steel pipe is a kind of long steel. The steel pipe has a hollow section and is widely used as a pipeline for transporting fluids, such as pipelines for transporting oil, natural gas, gas, water and certain solid materials. Compared with solid steel such as roun...Read more -
Blast furnace tap hole drill bit
The blast furnace opening drill bit is a drill bit for blast furnace opening machine, and it is a drill bit for ladle punching in steel mills. It is also called a blast furnace tap hole drill bit. The drill body is composed of a carrier and a drill bit on the carrier. It is composed of a drill cu...Read more -
Inspection of seamless steel pipes
1. Size and shape inspection of steel pipes (1) Steel pipe wall thickness inspection: micrometer, ultrasonic thickness gauge, no less than 8 points at both ends and record. (2) Inspection of the outer diameter and ovality of the steel pipe: caliper, vernier caliper, ring gauge, and measure the la...Read more -
Self drilling anchor system application guide
With the rapid economic development at home and abroad, self-drilling bolts and self-drilling anchoring systems are important supporting materials and solutions in the geotechnical anchoring engineering industry. It is being used in various construction projects. Today, I have compiled the most c...Read more -
Blast Furnace Taphole Drill Rod
We are the Blast Furnace Taphole Drill Rod manufacturer,it is our featured product, then we can supply you high quality,competitive price with best service. 1) Our featured size(outdiameter*wallthickness) a.38mm*12mm(1.496″*0.472″) b.34mm*11mm(1.338″*0.433″) c.34mm*12mm(1....Read more -
Edit Blast furnace drill pipe
Blast furnace drill bit and drill pipe production process product introduction Blast furnace open drill pipe is made of high-strength steel. It is suitable for blast furnace open drill pipes for various blast furnace openers. In ironmaking blast furnace production, blast furnace open drill pipes ...Read more -
How to construct self-drilling hollow grouting anchor rods
To understand how to construct self-propelled hollow grouting anchor rods, we must first know its structural characteristics. The self-advancing hollow grouting bolt is mainly composed of a hollow bolt body, a drill bit (all-steel drill bit and alloy drill bit), a centering device, a connecting s...Read more -
Edit Technical parameters of common drilling tools
Drill pipe (1) 2-7/8 “drill pipe 1) ★Outer diameter: 2-7/8 “(73mm); 2) Inner diameter: 2.151″ (54.6mm); 3) ★Drill pipe steel grade: G105; 4)★Processing form: EU; 5) Wall thickness: 9.19mm; 6)★Weight: 10.4ppf 7) Total length (from shoulder to shoulder): 31ft±0.5ft; 8) Material ha...Read more
