Kwayt Group was founded in 2008,which is engaged in the manufacture and export of many kinds of steel pipes and fittings. Kwayt is a group company, branch companies are shandong hongsheng steel pipe co.,ltd, Qingdao kwayt co., ltd., shandong kwayt metal products co., ltd., shandong kwayt technology co., ltd.The main products are Sonic logging tubes, Galvanized steel pipes,Perforated traffic sign posts, Seamless steel pipes,ERW pipes, SSAW pipes and LSAW pipes,etc. Our products are widely used in Piling Construction,Building...... Bridge,Petroleum, Chemical, Power and Gas, Oil and Gas well field,drinking water, fire, high-speed fence construction, etc.
We know by experience that today’s construction and industrial projects are simply more challenging than before: going higher, deeper, producing more better and in even tighter schedules. This is why we are constantly improving the quality of products, production efficiency and service level.
500+ skilled workers 20+years manufacturing experience. ASME, API,ISO9001,Patent certification
7*24 hours service online 10+ years Export Experience Various steel pipes-One stop service
Select high standard materials Based on sincerity ,quality first Strict control of production process
Efficient work efficiency Professional export operators Professional production engineer
Continuous improvement is a way of life at Kwayt Group. Our current quality management systems are meeting the highest certification standards existing worldwide.We are dedicated to offer best quality products and services to our valued clients and customers.
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.