Threeway Steel Co., Ltd
E-mail: sales@srtsteelpipe.com
Address: 22nd Floor, Royal Wing Tower, Long Champ International Building, No.9 Xiangfu Road, Changsha, Hunan, China, PC: 410116Phone:0086-731-8873-9521
Keywords : Update : 2017-01-08 View(s) : 2448
There are usually two heating products for the pipe billet of the welded steel pipe, including pre-heating and rolling tube. When manufacturing welded pipe , the two heating products should be heated before in a given path, and it requires the use of intermediate annealing so that t...
Keywords : Update : 2017-01-06 View(s) : 2623
First of all welded pipe weld clean oil, paint, water, rust, etc., and then open the groove according to the thickness, to open a large number of thick, thin it to open a small number of (angle grinder, then that is the gap of product, generally 1- 1.5 times the diameter of ...
Keywords : Update : 2017-01-06 View(s) : 2259
New year, new begin, new dream. Before the Chinese New Year comes, Shinestar Group to have care, support the construction and development of the group of all customers, partners, employees, and friends from all walks of life, with the most cordial greetings and best wishes! Thanks for the ...
Keywords : Update : 2017-01-05 View(s) : 2438
Cold expanded of large diameter straight welded pipe is a use of hydraulic or mechanical means urging the steel pipe from the steel wall along the radially outward dilatation pressure molding process. Mechanical than hydraulic mode, the device is simple and more efficie...
Keywords : Update : 2017-01-05 View(s) : 2390
Such as spiral steel pipe weld gap is too large, the effect of cuts constituting nearby, eddy current lack of heat, weld crystal adverse indirect co-occurrence of cracks or lack of fusion; if the gap is too small, the effect is increased near constitute, excessive heat weldin...