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steel_pipe(钢管)关键词...
stainless steel pipe(不...
seamless_steel_pipe(无...
welded_steel_pipe(焊接...
Carbon Steel Pipe
erw_steel_pipe(电阻焊钢...
澳标carbon_steel_rhs_a...
stainless_steel_tube(不...
seamless_steel_tube(无...
ASTM_A_691-98R07_Carbo...