Product technical indicators:

Index name	90%	88%	85%	food-grade
Na2S2O4                        %	90	88	85	85
(Fe)	20ppm	20ppm	20ppm	20ppm
(Zn)	1ppm	1ppm	1ppm	1ppm
Clarify degrees	clarify	clarify	clarify	clarify
EDTA	-	-	-	qualified
(As)	-	-	-	1ppm
Other metals (Pb)	-	-	-	1ppm
Formate (HCHO)	-	-	-	0.05%
insoluble matter	0.05%	0.05%	0.05%	-
Storage period (month)	12	12	12	12

Packing: 1) with double packing seal, drum polythelene film bag

Net content 15KG / 20KG / 25 kg / 50KG / 100KG / 200KG　

Handan Zhangyuan Chemical Co., Ltd.  is a professional manufacture in chemical field, specializing in chemical raw material.  

   which is integrating of both production and sales. Our products are sold well both at home and abroad. They have exported to more than ten countries and regions such as Europe, American ,  Southeast  Asia and so on.  

Located in the south part of Hebei province, with Beijing-Guangzhou railway, 107 national road and Beijing-Shenzhen Expressway right on its west, unique geological location and convenient transportation make our factory enjoy the best facilitating conditions, good investment environment and aggressive consciousness, which allows handan to be a hot land with business opportunities and hopes and an ideal place of setting up enterprises.

Our team win a confidence vote for the strict management system, advanced production craft , high-quality sales team, accurate inspection process and clearly financial management .

Our Chairman Wang sincerely welcome friends from both home and abroad to negotiate for mutual benefits.