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Shijiazhuang Zhengzhong Technology Co. Ltd.                       

Shijiazhuang Zhengzhong Technology Co. Ltd has been dedicated in enamel products industry since 1989.

We are the first one in China to research out hot-rolled sheet that is double-side enameled. We are also the largest and most professional manufacturer of GFS tank in China. It covers an area of 40,000 square meters , with more than 200 employees, including an R&D team and QC department. The company and product are ISO9001-2008, BSCI, and NSF certified.

In water and waste water treatment and biogas project, GFS tank has been widely used as various aerobic and anaerobic reactors of UASB,EGSB,SBR,BAF,USR,CSTR, and equalization tank, Clarifier, sludge holding tank, etc.

What is glass fused to steel tank (enamel coated steel tank)?

The steel round (cylindrical) shell of the tank is built from two-layer emanelled sheets coated on both sides. The sheets are attached with special high-grade bolts and sealed by constantly flexible silicone (sealant). The surface of connecting material and the shell itself are properly treated.

This is the only tank finish where two materials are fused together to achieve the best of both: the strength and flexibility of the steel combined with the corrosion resistance of the glass. The high temperature fusion of glass to steel fired at 850 degree results in an inert, durable finish. Applied to both interior and exterior, the GFS technology is able to withstand the rigours of the construction site and provide many years of trouble free service in harsh environments.

Why choose GFS Tanks?                                                            

Think about these advantages :  

* superior performance in corrosion resistance and against rust 

*factory fabrication tank . No painting or spray on erection site .

* minimal maintenance cost

* No need crane or other large equipment during erection

* not subjected to severe weather and environment.

* can be designed to future expansion, dismantle or re-movement.

* free service for technical drawings 

* turn key service from proposal to tank commissioning . 

With state of the art technology, a corrosion resistant coating, extremely low maintenance requirements, and fast onsite installation by our building crews, our glass-fused-to-steel tank system will be the storage tank you require. When it comes to liquid storage systems, you need look no further than Shijiazhuang Zhengzhong Technology Co., Ltd. 

Glass-fused-to-steel process:                                                     

Quality Control:                                                                            

Package:                                                                                        

Double checking is required before packaging, confirm the plate’s code and quality. The steel plates are separated with each other by PE foam, to avoid any damage on the coating surface. And the whole pallet are covered by a plastic film, tied by steel belt. Then the whole pallet is put inside a wooden box. 

Loading container:                                                                       

Roof and cover options:                                                              

Zhengzhong Technology Co. Ltd provides a full line of steel, membrane, aluminum roof options. Depending on the tank application,  the most suitable and economical roof is recommended by our experienced sales. 

GFS tank applications:                                                                

Contact Person:                                                                       

Joanna Tian /Project proposal manager

e-mail : zzkj125(at)

Tel : +862034061259

Mobile  /whatsapp: +86 18820036896

Skype :  joannatian0706