求救，这个付款方式有无风险

thus we request you to accept the below payment term, we will be establishing lc @ us$11.00 per cylinder crf mongla and balance us$13.9 per cylinder will be sent to you separately to your bank account after shipment. total of us$31692.00 will be sent to your bank account when you send us the bl copy. we would like to inform you that you can submit the original documents to bank only after you he received your balance payment in your account for which you can rest assured.