3TC4817-0BJ1安全至上操作說明
與無縫鋼管相對的是焊縫管。無縫鋼管是用圓鋼穿出孔，生產(chǎn)出的鋼管。焊縫鋼管是用帶鋼卷成桶再焊縫的鋼管，無縫鋼管都用在重要用途上，均勻、耐受壓高，如管、炮管等。一般用優(yōu)質(zhì)鋼，乃至合金鋼。焊縫鋼管都用在一般用途上，耐受壓一般，如水管、煤氣管等，用普通鋼制造。至于軟硬要看是用的哪種鋼號(hào)的鋼，管壁鋼管管徑的尺寸。我是干冶金的，這不在話下。無縫鋼管是穿管成材，再冷拔或熱拔成管，材料和規(guī)格是由客戶提出的，按客戶要求去做，壁薄壁厚是工藝的長短，只要設(shè)備有能力，任何鋼號(hào)、任何管壁管徑都能做，原理一樣，沒什么復(fù)雜的，小段子，小無縫、大無縫一樣，但成本高。


ALLEN BRADLEY 1771-NBVC SER. C F/W A UNMP
ALLEN BRADLEY 20A 8P0 A 3 AYNNNC0 SERIES A 5HP POWERFLEX DRIVE (R2)
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Allen-Bradley 160-BA03NSF1P1
ALLEN BRADLEY * ANALOG OUTPUT MODULE * 1771-OFE2 SER A **NEW**
ALLEN BRADLEY * ANALOG OUTPUT MODULE * 1771-OFE2 SER A **NEW**
ALLEN BRADLEY 1336-MOD-G2 REMOTE I/O INTERFACE VER 2.01 SHIPSAMEDAY
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Allen Bradley 40430-850-01 N.c. Contatto per Contatore Misura 3 4043085001
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ALLEN BRADLEY 2700C-S2 SERIES B *NEW*
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ALLEN BRADLEY 8000-EJ BOARD 8000EJ
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ALLEN BRADLEY 802PR-LABJ2 SER. C UNMP
ALLEN BRADLEY 20A-C-8P7A-0-AYNNDNN POWERFLEX 70 AC DRIVE 20AC8P7A0AYNNDNN
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SIEMENS 3RK1304-5KS70-2AA3 
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SIEMENS 6SC6100-0NA11 
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SIEMENS 3RV1-021-1GA10
SIEMENS 6ES5-700-1LA12
Siemens 505-6511 

WEISTINGHOUSE 1C31234G01 65
WEISTINGHOUSE 1C31161G02 60
WEISTINGHOUSE 1C31122G01 51
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WEISTINGHOUSE 1C31224G01 47
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WEISTINGHOUSE 1C31113G02 38
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WEISTINGHOUSE 1C31233G04 6
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ALLEN BRADLEY 200-EX220Z1 / 200EX220Z1 (RQANS1)
ALLEN BRADLEY 1771-KA2 / 1771KA2 (NEW NO BOX)
ALLEN BRADLEY N28 / N28 (USED TESTED CLEANED)
ALLEN BRADLEY 32A27 / 32A27 (RQANS2)
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ALLEN BRADLEY 855E-00XN3 / 855E00XN3 (USED TESTED CLEANED)
ALLEN BRADLEY 40116-437-01R / 4011643701R (NEW IN BOX)
ALLEN BRADLEY 1771-NIV / 1771NIV (Used)
ALLEN BRADLEY 1494F-P1 / 1494FP1 (USED TESTED CLEANED)
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ALLEN BRADLEY 1326AB-MOD-G3 / 1326ABMODG3 (USED TESTED CLEANED)
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ALLEN BRADLEY Z-2149 / Z2149 (RQANS2)
ALLEN BRADLEY 200-EX440Z2 / 200EX440Z2 (USED TESTED CLEANED)
ALLEN BRADLEY 42LCB-5000 / 42LCB5000 (USED TESTED CLEANED)
ALLEN BRADLEY 1786-FS100 / 1786FS100 (NEW NO BOX)
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ALLEN BRADLEY 5X198 / 5X198 (NEW IN BOX)
ALLEN BRADLEY 40023-414-01 / 4002341401 (RQANS2)
ALLEN BRADLEY 1481-N26 / 1481N26 (RQANS2)
ALLEN BRADLEY 140581 / 140581 (USED TESTED CLEANED)
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ALLEN BRADLEY 42GRP-9000-QD1 / 42GRP9000QD1 (USED TESTED CLEANED)
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