(a) 10% down payment shall be paid within 15 days against Bank Guarantee for 10% of Contract Price.
(c) 70% through letter of credit against despatch on clean onboard bills. The payment shall be as per approved billing schedule and subject to inspection acceptance and clearance by third party inspecting agency.
(d) 10% on commissioning and on satisfactory completion of performance testing according to clause no.17 against Bank guarantee for 10% of Contract value for 18 months warranty period.
尤其是“against”这个词