Answer: Using A for one-layer product, A1 is for 00110 such as 30411-16-05A1
                                  A2 is for 01100 suck as 30411-16-05A2
                                  A3 is for 00100 such as 30411-16-05 A3
                                  A4 is for 03300 such as 30411-16-05A4
                                  A5 is for 00018 such as 30411-16-05A5
                                  A6 is for 00TF0 such as 30411-16-05A6
.Using B for two-layer product , B1 is for 00210 such as 30211-14-04B1
                             B2 is for 01200 such as 30211-14-04B2
                             B3 is for 00200 such as 30211-14-04B3
                             B4 is for 03310 such as 30211-14-04B4
.Using C for three-layer product, C1is for 01300 such as 30211-14-04C1
.Using D for four-layer product ,D1 is for 00400- such as 30212-30-12D1
                             D2 is for 01400 such as 30212-30-12D2
                             D3 is for 00401 such as 30212-30-12D3
      .Using F for six-layer product ,F1 is for 00605 such as 87312-12-12F1
                            F2 is for 00405 such as 87312-12-12F2
                            F3 is for 00601 such as 87312-12-12F3