北京华德单向阀部分型号：
S30A21.0B    SL30GB3-40B    SV30GB2-30B
S30A22.0B    SL30GB4-40B    SV30GB3-30B
S30A31.0B    SL30PA1-30B    SV30GB4-30B
S30A32.0B    SL30PA1-40B    SV30PA1-40B
S6A01.0B    SL30PA2-30B    SV30PA2-40B
S6A02.0B    SL30PA2-40B    SV30PA3-40B

S6A11.0B    SL30PA3-30B    SV30PA4-40B

SL30PA2-40B北京华德液控单向阀***

S6A12.0B    SL30PA3-40B    SV30PB1-40B
S6A21.0B    SL30PA4-30B    SV30PB2-40B
S6A22.0B    SL30PA4-40B    SV30PB3-40B
S6A31.0B    SL30PB1-30B    SV30PB4-40B
S6A32.0B    SL30PB1-40B    Z1S10A1-30B
S6A51.0B    SL30PB2-30B    Z1S10A2-30B
S6A52.0B    SL30PB2-40B    Z1S10A3-30B
S6K01.0B    SL30PB3-30B    Z1S10B1-30B
S6K11.0B    SL30PB3-40B    Z1S10B2-30B
S6K21.0B    SL30PB4-30B    Z1S10B3-30B
S6K31.B     SL30PB4-40B    Z1S10D1-30B
S6K51.0B    SV10GA1-30B    Z1S10D2-30B
S8K01.0B    SV10GA2-30B    Z1S10D3-30B

S8K11.0B    SV10GA3-30B    Z1S10E1-30B

SL30PA2-40B北京华德液控单向阀***

S8K21.0B    SV10GA4-30B    Z1S10E2-30B
S8K31.B     SV10GB1-30B    Z1S10E3-30B
S8K51.0B    SV10GB2-30B    Z1S10F1-30B
SL10GA1-40B    SV10GB3-30B    Z1S10F2-30B
SL10GA2-40B    SV10GB4-30B    Z1S10F3-30B

SL10GA3-40B    SV10PA1-30B    Z1S10P1-30B