農業土木河川砂防製品景観資材下水製品暗渠製品貯留・防災製品擁壁製品道路用製品JIS・その他一般製品ベチフ暗渠400450500呼び名4505003501002002503006040B21526030043528531055390200225250600200250300350400606575859550370170345B14755203454565H405430T170100110120809055規 格 寸 法 （mm）20001000200010002000a50R301000L100020001000200010004050607080T2T3482200010002000200030060035771421,80013,20012224415330618637224150,90031,100価 格（円）62,20026,40017,20034,30021,20042,50025,40043787410021206参考質量(kg)8,70017,40010,90071,30085,8002000110120550600550aB1BT3T1HLRT2341
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