pipe spanner
常見例句
- The driving part is superior to that of available pipe bending spanner, and has determined size, high strength and high practicability.
本發(fā)明可改善現(xiàn)有的彎管扳手驅(qū)動部的套接頭 無特定比例的缺點(diǎn)，兼顧結(jié)構(gòu)強(qiáng)度與實(shí)用性。
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