DN5O0无缝钢管野外,焊接,安装人工费多少钱一米？ 焊接基础学科包括哪些呢？
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绛旓細DN500鏃犵紳閽㈢锛岄噹澶栫剨鎺瀹夎浜哄伐璐规槸700锝750鍏/绫炽
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绛旓細58 PPR涓嶉攬閽㈠唴绠 387.600 m 30.000 30.000 11628.00 59 鏃犵紳閽㈢ DN200 12.240 m 327.550 327.550 4009.21 60 鐓ф槑寮鍏(鍏墰) 4.080 鍙 18.000 18.000 73.44 61 鍏墰鎻掑骇 4.080 濂 22.000 22.000 89.76 62 杞存祦鎺掓皵鎵 2.000 鍙 230.000 230.000 460.00 鍚堣297855.15 缂栧埗鍗曚綅: 鏈洖绛旂敱鎻愰棶鑰呮帹鑽 宸茶禐杩 宸...
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