No.	Items for detecting and analyzing	Standard value
1	Oxalic acid content (C2H2O4) ％≥	99.6
2	Sulfide (as SO4) ％≤	0.07
3	Combustion residue ％≤	0.01
4	heavy metal (as Pb) ％≤	0.0005
5	Fluoride (as Fe) ％≤	0.0005
6	Chlorine (as Cl) ％≤	0.0005
7	Calcium (as Ca) ％≤	0.0005
8	Water insoluble content ％≤	0.02

References: Riel Chemical Lab1&2, National public service platform for standards information.

FAQ

1.What is your payment term?

We can accept T/T and L/C at sight as payment term.

2.Are you able to deliver on time?

Of course! we specialised in this line for many years,

many customer make a deal with me because we can deliver the goods on time and keep the goods top quality!

3.Do you provide free sample?

Yes, we can provide free sample . You only need to take the express fee.

4.How about the price?Can you make it cheaper?

We always take the customer’s benefit as the top priority.

Price is negotiable under different conditions, we are assuring you to get the most competitive price.

5.Can I visit your company and factory in China?

Sure. You are very welcomed to visit our company in Weifang, China.

(We will have someone responsible for picking up and dropping off at Weifang Airport)

6.What if there is a quality problem?

We have a professional and perfect after-sales service team, timely for you to deal with all problems.

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