3 3′ 4 4′-Biphenyltetracarboxylic dianhydride BPDA 2420-87-3
Khoom npe: 3,3',4,4'-Biphenyltetracarboxylic dianhydride BPDA CAS: 2420-87-3 Nr MF: C16H6O6 PIB: 294.22 IB: 219-342-9 Melting point: 299-305 ° C (lit.) Kub taw tes: 614.9 ± 48.0 ° C Qhov ceev: 1.625 ± 0.06 g / cm3
【Siv 1】 Rau kev tsim cov khoom siv polyimide thiab lawv cov khoom sib xyaw 【Siv 2】 Polyimide monomer, siv nyob rau hauv kev tsim cov ntaub ntawv tshiab polymer xws li cob thiab PI zaj duab xis.
1, T / T
2, L / C
3, Visa
4, Daim npav rho nyiaj
5, Paypal ua
6, Alibaba Trade Assurance
7, Western union
8, MoneyGram
9 Tsis tas li ntawd, qee zaum peb kuj lees txais Bitcoin.
Khaws rau hauv ib lub tsev khaws khoom qhuav thiab qhov cua.