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SV（1）30（2）P（3）B（4）2（5）-30(6)B(7)/v(8)
1：SV：不带泄油口
2：30：规格
3：P：底板连接；G：螺纹连接
4：B：不带先导阀
5：2：开启压力，1，3，4
6：30：30系列；40：40系列
7：B：北京华德液压技术
8：V：磷酸酯液压油；无代号：矿物质液压油
产品型号：
SV30PA1-40B/ SV30PA2-40B/ SV30PA3-40B/ SV30PA4-40B/
SV30PB1-40B/ SV30PB2-40B/ SV30PB3-40B/ SV30PB4-40B/
SV30GA1-40B/ SV30GA2-40B/ SV30GA3-40B/ SV30GA4-40B/
SV30GB1-40B/ SV30GB2-40B/ SV30GB3-40B/ SV30GB4-40B/
SV30PA1-30B/ SV30PA2-30B/ SV30PA3-30B/ SV30PA4-30B/
SV30PB1-30B/ SV30PB2-30B/ SV30PB3-30B/ SV30PB4-30B/
SV30GB1-30B/ SV30GB2-30B/ SV30GB3-30B/ SV30GB4-30B/
