do choi thu dam may tap duong vat deo bao cao su quan h bao tang kich co cau nho dai to bao cao su bi do choi tinh duc duong vat dai bao don den cach lam to cu nhanh chich may tap cau nho bao bi may lam to chuym khung bao tang kich co duong vat gai dam dang bao bi choi gai lam to cau nho tang kich co cau nho may tap tang kich co cau nho lam to duong vat may tap duong vat tu dong lam to chuym bu tang kich thuoc cau nho lam to cu bao don den co bi ho tro sinh ly bao ccao su don den duong vat to dai bao cao su deo bao cao su