Qingdao Kwayt International Trade Co., Ltd. sincerely invites you to visit the 45th Middle East (Dubai) Big 5 Industry Exhibition (The Big 5 Dubai) held at the Dubai World Trade Center from November 26th to 29th.

Kwayt group limited hereby sincerely invite you to visit our booth at the big 5 internation building &construction exhibition from 25th to 28th Nov,2019.

Hot galvanizing is to make molten metal react with iron substrate to produce alloy layer, so that the substrate and the two layers of coating are combined. The manufacture of the hot-dip galvanized pipe is to wash the steel tube first to remove the iron oxide on the surface of the steel tube. After pickling, it is cleaned by the solution of ammonium chloride or zinc chloride or ammonium chloride and zinc chloride and then into the hot dip bath.

The Sonic Logging Technique, also known as Cross Hole Ultrasonic Method (CHUM) is used to determine the defect in cast in-situ piles, caisson, barrettes and diaphragm walls. Such tests can produce an economic survey of each pile to complement the more expensive capacity testing which is restricted to a small percentage of piles.

The sounding tube is composed of a bottom pipe, a middle pipe, a bottom plug and a sealing rubber ring. The main material of the sounding tube is the thin wall welded pipe, and the material is generally Q195 - Q235 -Q235B. The specifications of commonly used thin-walled welded pipes for acoustic tubes are mainly the following Special thin-walled welded pipe for acoustic tube

The sonic tube is the channel for the probe to enter the pile body when the pile is used for ultrasonic testing. It is an important part of the ultrasonic testing system for cast-in-place pile. The pre embedding method in the pile and the layout of the pile on the cross section of the pile will directly affect the test results. Therefore, the burying arrangement of acoustic tube is particularly important, we must strictly control the burying quality, in order to ensure the smooth completion of the project.