| 英文名称: | | Pitch, coal tar, high-temp. | | Coal tar pitch | | coal-tar pitch | | coal tar pitch volatiles | | pitch, coal tar | | poix de houille | | coal tar pitch volatiles (benzene soluble fraction) | | coal tar pitch > | | 351 | | 351 deg.c(awpi) | | coal tar pitch >351 deg.c(awpi) | | coaltarpitchvolatiles | | Pitch,coal tar,high-temp. | | coal pitch |
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