Dear sirsWe are Cangzhou Golden Source Co., Ltd.A creditworthy trade company in China.We specialize in importing petroleum products.We now looking for a supplier who can povide the following products for long terms: bitumen60/70 80/100 Fuel oil180/380 Diesel Heavy oil Residue oil lubricating oil GilsoniteWe want to build a long term relationship with the seller have good faith. I would be obliged if you would give us your price lists and catalogues and also details of trade discounts.I am here looking forward to hearing from you soon.RegardsOliviaAlitalk: cn1003402125 msn:*****gmail:*****skype:oliviapetro*****fax:86-317-4589922tel:86-317-4589132Cangzhou Golden Source Co., Ltd