(S)-3-Hydroxy-gamma-butyrolactone 7331-52-4

1kg/bag,5kg/bag or 25kg/Hardboard drum or at your requirment
1KG : Double pharma-grade polybag inside,sealed Aluminum foil bag outside
5KG : Double pharma-grade polybag inside,Hardboard cartons outside
25KG: Double pharma-grade polybag inside,Hardboard drum outside

Guangzhou Wanjiang Biotechnology Co., Ltd. is a young chemical enterprise full of vitality, potential and comprehensive strength.The company is located in the center of politics, military, economy, culture and science and education in South China.We are a professional manufacturer engaged in the research, development, production, sales and service of surfactants, biological agents, organic chemistry, oilfield chemicals and disinfectant raw materials.We can offer a wide range of products to meet the changing needs of the market.Custom orders are welcome.We are committed to strict quality control and thoughtful customer service, and our experienced staff are always available to discuss your requirements and ensure complete customer satisfaction.With an annual production capacity of 10,000 tons/year, we can easily meet your large orders.If you are interested in any of our products or would like to place a custom order, please contact us.We will do our best to meet your needs. what s a pp+86=155=1212=0776

1.Place of Origin China with Super quality by reasonable price.
2.Fast delivery by safe express way to all the country.
3.Has a number of highly qualified engineers and experts to provide guidance for reagents.
4.When you meet problems in mineral processing, we can provide technical guidance.
5.Sample order are welcome.
6.NMR,HPLC and COA can be supplied
7.We can supply sample for testing.
8.We promise 100% deliveried,and 100% resend or refunds if parcel is not deliveried!
9.Payment method western union,T/T and Bitcoin
10. Alibaba gold members with high credit guarantee

Q1. Can I have a sample order for your products?
A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable. We provide free samples, but the freight will be borne by you, and the cost will be returned to you or deducted from your order later.
Q2. What about the lead time?
A:Sample needs 3-5 days, mass production time needs 1-2 weeks for order quantity more than
Q3. Do you have any MOQ limit for order?
A: Low MOQ, 10-100g for sample checking is available
Q4. How do you ship the goods and how long does it take to arrive?
A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping also optional.
Q5. How about the packing?
A: Usually we provide the packing as 25 kg / bag or carton. Of course, if you have special requirements on them, we will according to you.
Q6: how do you control quality? 
A: We will make samples before mass production and start mass production after sample approval. 100% inspection during production and random inspection before packaging. 
Q7: how to contact us? 
A: send us the product information you are interested in. You will get a reply within 24 hours. or contact us by Whatsapp/Telegram:+8615512120776
Q8: which payment method do you accept?
A: For small orders, you can pay by wire transfer, Western Union, Bank Tansfer, Bitcoin or Alibaba. 
Q9: can you give me a discount?
A: Of course, it depends on your quantity 
Q10: how to confirm product quality before placing an order? 
A: you can get free samples for some products. You only need to pay for transportation or arrange express delivery to take samples for us. You can send us your product specifications and requirements. We will make products according to your requirements.
Q11: how do you deal with quality complaints?
A: first of all, our quality control will reduce the quality problem to nearly zero. If the actual quality problem is caused by us, we will send you free goods for replacement or refund.
Q12: Are you trading company or manufacturer?
A: We are chemical factory in China. So we can provide wholesale price.