rexroth牌的SV20PA31-4X产品：估价：222，规格：SV20PA31-4X，产品系列编号：力士乐

REXROTH力士乐SV系列单向节流阀型号如下:
SV30PA2-30
SV30PA1-4X
SV30PA4-4X
SV20PA3-4X
SVS-3-1/8
SV10GB1-4X
SV10PA1-4X
SV20GA1-4X/V
Z2FS10A5-3X/SV
Z2FS10-5-33/SV
SV30PA3-30
SVS-3-1/8
SV10-PB-1-42
SV10PB1-42
SV30PA1-4X
SV20PA31-4X
SV16PA2-3X
SV30PA2-30
SV10-PB-1-42
SV10PA4-4X
SV20PA3-4X
SV20PA3-4X
SV10GA1/2
SV20PA1/2