1.the kinds of drafts汇票种类
(1)available by drafts at sight凭即期汇票付款
(2)draft(s) to be drawn at 30 days sight开立30天的期票
(3)sight drafs 即期汇票
(4)time drafts 原期汇票

2.drawn clauses 出票条款（注：即出具汇票的法律依据）来源：www.examda.com
(1)all darfts drawn under this credit must contain the clause “Drafts drawn Under Bank of…credit No.…dated…” 本证项下开具的汇票须注明“本汇票系凭……银行……年……月……日第…号信用证下开具”的条款
(2)drafts are to be drawn in duplicate to our order bearing the clause “Drawn under United Malayan Banking Corp.Bhd.Irrevocable Letter of Credit No.…dated July 12, 1978” 汇票一式两份，以我行为抬头，并注明“根据马来西亚联合银行1978年7月12日第……号不可撤销信用证项下开立”
(3)draft(s) drawn under this credit to be marked：“Drawn under…Bank L/C No.……Dated (issuing date of credit)” 根据本证开出得汇票须注明“凭……银行……年……月……日（按开证日期）第……号不可撤销信用证项下开立”
(4)drafts in duplicate at sight bearing the clauses“Drawn under…L/C No.…dated…” 即期汇票一式两份，注明“根据……银行信用证……号，日期……开具”
(5)draft(s) so drawn must be in scribed with the number and date of this L/C 开具的汇票须注上本证的号码和日期
(6)draft(s) bearing the clause：“Drawn under documentary credit No.…(shown above) of…Bank” 汇票注明“根据……银行跟单信用证……号（如上所示）项下开立”