China square steel tube Manufacturers Factory Suppliers

Square and rectangular hollow structural section as per ASTM A500, EN10210, JIS G3101, JIS G3466, manufacturer process: seamless and ERW

JIS G3454 is a technical specification for carbon steel pipes used in pressure equipment in the Japanese Industrial Standard (JIS). It is applicable to pressure piping systems with temperatures not

EN10219 standard covers cold formed welded circular, square and rectangular structural hollow sections. It is suitable for applications in buildings and engineering structure of lighter load. Wanlei

GB/T 13793 welded steel pipe is suitable for structural purposes such as machinery and construction, etc. It can also be used for fluid transportation. We can provide high quality GB/T 13793 welded

Electric fusion arc welded straight seam or helical seam steel pipes. There are five steel grades in ASTM A139 standard, Grade A, Grade B, Grade C, Grade D and Grade E. Looking forward to your

JIS G3444 specification is used for civil engineering and architecture. There are five grades and four welding methods in this standard. Grade: STK290 STK400 STK490 STK500 STK540. Welding methods:

Spiral welded pipe SSAW is one of the main products produced and exported by Tianjin Wanlei Steel Pipe Co., LTD. spiral welded pipe SSAW has a wide range of applications, involving industry,

SSAW is an important welding method, which has the advantages of stable welding quality and high welding productivity

SSAW pipe, spiral welded steel pipe, spiral weld steel pipe, SAW steel pipe, Q235 SSAW pipe, Q345 SSAW pipe.

Spiral weld steel pipe is manufactured from steel coil. The spiral weld steel pipe manufacturing process is one of the most cost effective ways to produce steel pipe. The mill setup offers a varying

Seam of Large Diameter Schedule 40 Spiral Welded Carbon Steel Pipe SAW SSAW HSAW，etc Length of Large Diameter Schedule 40 Spiral Welded Carbon Steel Pipe 12m,6m or as random Usage of Large Diameter

large diameter ERW steel pipe, API 5L large diameter ERW steel pipe, ASTM A53 large diameter ERW Steel pipe, material: PSL1/PSL2 B,X42,X52,X56,X60,X65,X70,X80,Q235,Q345.