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ASTM A53GR.B鏃犵紳閽㈢
鐜葷拑閽㈢紶缁曢槻鑵愪繚
N80鐭蟲補濂楃
澶栫幆姘х叅娌ラ潚宀╂
L80鐭蟲補濂楃
P110鐭蟲補濂楃
閽㈠閽㈣捀姹戒繚娓╅挗
棰勫埗鐩村煁淇濇俯閽㈢
S135閽繪潌
鐜哀鏍戣剛澶栭槻鑵愶紝
鐢靛姏鍐呭娑傝閽㈢
鍙岀洏鍐呭鐜哀鏍戣剛
娑傚澶嶅悎閽㈢
IPN8710闃茶厫閽㈢
姘存償鐮傛祮闃茶厫閽㈢
鐓ょ熆浜曚笅鐢ㄦ秱濉戦挗
鐭蟲補閽繪潌
缁欐按娑傚澶嶅悎閽㈢
閽繪潌
鐑蹈濉戦挗璐ㄧ┛绾跨
铻烘棆閽㈢
Iron rusts from disuse, stagnant water loses its purity and in cold weather becomes frozen; even so does inaction sap the vigors of the mind - Leonardo da Vinci, Artist