How to drill the long electric heating pipe hole of the brake pad mold? deep hole drill, brake pad mould factory

(1) JNHG is a professional brake pad mold factory,
(2) For long holes with a depth of more than 200mm, deep hole drilling is required
(3) The longest drilling depth is 2000mm
(4) Gun drill bit, strictly guarantee the drilling accuracy
(5) E sebetsa ho liforomo tse latelang:
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