關於ponding的百科

• ponding造句怎麼寫

• Standardofponding:pondingnotdeeperthan3mm(thethicknessofHK$5.00coin)ineveryparticular1000mmlengthcanbeaccepted.Thecement-sodiumsilicatebinaryslurryapplicationinpitminespondingconstructionSolvingtheproblemofleakageandpondinginGRPtoiletformarineapplica...
• 2017-02-2012422