We, Superlove Queen hair, which is one Leading professional old product supplier of human hair products in China, 20 years hair collect and produce experience. 
our company specialized in all kinds of human hair products, e.g. Brazilian hair weft, Malaysian hair weft, Peruvian hair weft, Indian hair weft, lace wig, lace closure, hair extension, wigs, taped, clips in hair extensions. Our hair is popular and well known in USA, UK, France, European, and Africa, welcome to visit our factory any time.

Many trade companies and clients buy hair products from us.

So you may save much cost by ordering directly from a real and stable professional manufacturing hair factory&supplier like us. we can give u low price to get good quality hair. 
And also we will support client's hair business, such as we can guide u how to buy and sell the hair, how to take care the hair, and how to develop your hair business, 

So, We are your good choice as good hair supplier.
My answers for questions as bellow:
1. Yes we have hair samples.
2. i write hair prices below.
3. We have 3 factory, one is in Xuchang, one is in Qingdao, one is in Guangzhou.
4. yes we carry straight hair.
5. our hair is double wefted cuticle hair

Brief introduction of us as bellow:
1) 100% human Hair wefts: including mainly 100% non-processed virgin human hair wefts, which can be dyed /straighten again. Quality have 4A, 5A, 6A. we also some remy hair and non virgin hair wefts.

2) human hair bulk

3) some hair extensions: I-tip, U-tip, Nail tip, Taped, Micro ring, clips in hair extensions.

4) human hair lace closures:sizes are  4*4, 5*5, 13*2, 13*4, etc.

5) lace wigs

2. Hair styles:
Straight, body wave, deep wave, loose wave, water wave, deep curly, kinky curly, Jerry curly, Italian curl, spring curl, and so on.

3. Hair colors:

1) natural black, which can be dyed again into the other light colors

2) #1, #1B, #2, #4, #6, #99J, #8, #27, #30, #60, #613, etc.

3) P mixed color: #1b/#4, #18/#8, #1b/#27, #1b/#99j, #1b/#613, etc.

4) T mixed color(Ombre color): 

a) 2-tone colors: #1b/#4, #18/#8, #1b/#27, #1b/#99j,  #1b/#613, etc.

b) 3-tone colors: #1b/#4/#27, etc. 

4 Our hair stock is big, we can ship out goods within 6 hours once get payment. 

5. Immediate shipping out & short shipment time, such as usually takes 2 days to USA, European market, and takes 3-5 days to Africa.

6. We can also can do drop ship to your clients directly

7. Our Hair wefts' Main features:
1) 100% virgin Raw Human Hair, No mix, Non-processed, keep cuticles, No tangle
2) Double Layers Sewing, Tight and Neat, No Shedding
3) Natural black /brown, Can be dyed, ironed, straighten, braiding, etc.
4) clean, soft, natural, beautiful. Water Wash and Dry Naturally 
5) 95-110g/piece, length is longer than the inch you buy!
6) Length from 10" to 40", different length different prices
7) Good and light package which can save shipment cost

8. High quality but Low wholesale cost prices of our 100% virgin human hair weaves that can be dyed again for Indian/ Brazilian/ Malaysian/Peruvian, hair etc. :
Lengths $/Piece,100g/piece 
12" $24.3
14" $27.5
16" $30.8                
18" $34.2
20" $37.7
22" $40.9
24" $43.7
26" $47.6
28" $50.8
30" $53.4

Our hair quality is high and guaranteed, if any hair problem we accept goods return and also will return back payment. Hope to do business with u in a good and long cooperation.