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