high quality 1-Diazo-2-naphthol-4-sulfonic acid_ CAS NO.887-76-3

 Product Information                                                                                    

Specification

 Quality and Service                                                                                        

1.Customer Satisfaction is our priority and guarantee for the future.

2.We co-develop products and projects with our partners.

3.Place of Origin China with Super quality by reasonable price.

4.When you meet problems in mineral processing, we can provide technical guidance.

5.We will ship the goods that you order from us by EMS, DHL, UPS, or FedEx.We will decided to choose which

courier depend on Different countries.To find the best way to delivery the goods for you.

6.We will ship the goods within 5days after get your payments.If you want to cancel or change order, please tell

me within 24hours after you finish the payment...So we both can make the best of the bad bargain.

Bulk Order: Shipped via sea or air, it's according to your requirement, delivery time is 7-15days after payment

7.If you have any other questions to consult me.please not hesitate to contact me any times.

All we want is win-win business. Send us your inquiries, you will get it!

Our service:

1. Certificate of analysis (COA)

2. Material safety data sheet (MSDS)

3. Route of synthesis (ROS)

4. Method of aanlysis (MOA)

5. Nuclear magnetic resonance (NMR)

6. Packing pictures and loading video before loading

7. Free sample

9. Factory audit

10. Strong after-sale service

 Our Advantage                                                                                               

1. 1. 1. Rich experience.
      Our company is a professional production leading factory in China in pharmaceutical area of many years,

   our products have exported to Germany, Spain, UK, USA, Australia, Middle East, and so on other country,

   and we have got very good feedback from our customers, we had Established long friendly relations of

   cooperation.

    

   2. Great quality, purity and favourable.
   Good quality is one of our secret success, welcome order the samples, MOQ just 1 grams.

    

   3. Safe and fast delivery.
   We have stock, so we can delivery quickly at the very day when receive the payment.

   We have special way could ship 0.01kg to 3.5kg products a time. We offer melting powder into liquid

2. service. And ship the liquid in special bottles.

    

   4. Good before after-sales service.

   
   

3. 
   

4. Before-sales:
   - We would like to offer our most favorable quotation and detailed information about 

5. product as well as our company.
   - We would like to offer free sample for testing use.

   
   After-sales:
   - We would like to assist buyers in custom clearing through providing necessary documents and information.
   - We would provide the best solution when there is any dispute about product quality.

   ur Advantag

 Packaging & Shipping                                                                                  

Shanghai Lonwin Chemical Co., Ltd. is a company committing to contract synthesis and production

of photoinitiators, fluorocarbon surfactants, indicators, intermediates and APIs.

Our company has ISO and REACH international certification, in Jiangsu, Anhui and other places with

decades of cooperation of OEM processing plants, to provide a more solid support for the customized

production service of special chemicals.

Now, our products are well sold in North America, Europe, Japan, South Korea and the Middle East,

and customers are highly satisfied with our products and service!

To achieve sustainable and steady development, we establish closely cooperative relationships with

famous universities and institutions of China. We regularly exchange information with them and make

cooperation on the R&D of new technologies.

Sticking to the business philosophy of "quality first, credit first, service first, creativity first",we are

doing our best to meet demands of customers all around the world. We sincerely welcome your visit

and business, and look forward to cooperating with you for expanding international market together! 

 F.A.Q                                                                                                               

• Q1  Can i get some samples? 

  A1  Yes, we can supply the free sample, but the shipping cost be paid by our customers.

   

  Q2  How to start orders or make payments? 

  A2  Proforma invoice will be sent first after confirmation of order, enclosed our bank information.

• Payment by T/T,or Paypal or Escrow(Alibaba).

   

  Q3  How to confirm the Product Quality before placing orders? 

  A3  You can get free samples for some products,you only need to pay the shipping cost or arrange a courier

• to us and take the samples. You can send us your product specifications and requests,we will manufacture

• the products according to your requests.

   

  Q4  What’s your MOQ? 

  A4  Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge

• is 100% paid.

   

  Q5  How about delivery leadtime? 

  A5  Delivery lead time: About 3-5 days after payment confirmed. (Chinese holiday not included)

   

  Q6  Is there a discount? 

  A6  Different quantity has different discount.

   

  Q7  How do you treat quality complaint? 

  A7  First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem

• caused by us, we will send you free goods for replacement or refund your loss.

   

  Q8  How to contact us ? 

  A8 You can choose your interested products and send inquiry to us.