is Esun technology scam ?

Hi,

I've got a quotation from company called E-Sun Technology ,
I still haven't decided if i should pay for them.
Before that i just want to make sure if it's a real one.


E-Sun Technology Group Co., Ltd
Website：

http://www.sztyg.com / http://www.taiyanggukeji.cn/
http://www.esun.hk
TEL： +86-755-83283727 / +86-755-83279912
FAX： +86-755-83289112 / +86-755-83279974
Email： lq1995@yahoo.com.cn / sales@sztyg.com
MSN： lq1995@hotmail.com Online chat: Alice /Demi /Robin Ling
CompanyAddress：
Room 1703&1802 International Science &Technology Building,No.3007 Mid-Shennan Road,Shenzhen,China.
Factory Address：
Baotian industrial zone,Qianjin second road,Xixiang, Baoan,Shenzhen ,China


Thanks ,
Uthpala