Supply & Demand

Zhonghui founded in 1997, our products involve in ERW welded pipe production line, oil & gas pipe production line, precise steel pipe production line, cold roll forming section steel production line, coil slitting line, etc.

AOYI (TianJin)  Steel Co., Ltd. is a comprehensive enterprise integrating production and processing. Our company specializes in hot dip galvanized square pipe, galvanized pipe, plastic steel, angle bracket, photovoltaic H steel, flat steel and other manufacturing operations and processing business of various galvanized pipe profile and curtain wall material embedded parts.

DINGSHANG is specializing in industrial stainless steel welded tube and special alloys tube,  with annual production capacity up to 7,000 tons. The tubes are produced to conform to GB, ASTM/ASME, JIS, DIN, EN, GOST and ISO standards. Some special requirements from clients can also be met.

Due to excellent technicians, advanced production equipment, satisfactory inspection and testing equipment and perfect quality assurance system, DINGSHANG has got quality management system ISO9001, EU pressure equipment directive PED and AD2000 all issued by the Lloyd's, and also Chinese national special equipment manufacturing license (TS certificate).

Huzhou Gaolin Stainless Steel Tube Manufacture Co., from China was set up in 2002, with 400 tons of nickel alloy & duplex & stainless steel tube output per month.The company has got certification ISO & PED by LRQA, ASME by TUV, ABS & DNV-GL for marine and License of Special Equipments Production (Pressure piping).

We are the professional BA&EP tube manufacture. The OD is 6.35mm to 50.8mm, the WT is 0.5mm to 3mm.  The company adopts multi-roll finishing rolling and oil-drawing process， the Ra<0.5, 0.2 and so on.  The production capacity is 4.7million meters at last year, the material is TP304L/1.4307，TP316L/1.4404. We have various size stock to meet the urgent needs of customers.

Grin located in Loudi, Hunan, China. We are the professional stainless steel pipe manufacturer. Main products include SS welded pipe, corrugated pipe, high efficient pitted surface pipe, coil pipe, bend pipe and so on.

Wenzhou Chaohai Stainless Steel Mirror Pipe Co., Ltd. is an enterprise specializing in the production of sanitary stainless steel seamless pipes, and stainless steel seamless mirror pipes. The company has passed the ISO9001 quality system demonstration and has obtained the "China Quality Trusted Product" certificate. 

Wenzhou Kaifu Industry Co., Ltd. is a professinal muanfactuer of stainless steel pipes.
Mainly produce the stainless steel welded pipe,stainless steel square tubes , stainless steel mirror polished tubes.

Zhejiang Tsingshan Steel Pipe Co., Ltd. was founded in 2003. It is an integrated manufacturer for stainless steel seamless, welded pipes, tubes, fittings, which are widely applied in various industries.

Zhejiang Jin Bo Fluid Technology Co., Ltd. is a professional manufacturer of high precision sanitary valve, pipe fittings and pumps and other fluid equipment. Products are widely used in dairy products, beer, food, etc.

The company has advanced production equipment: NACHI heat treatment equipment, outmatic grinding machine, high performance PVD coating equipment, high-precision 4-axis CNC saw blade teeth grinding machines and a range of precision inspective equipment.