For steel products:

( 1. ) seamless steel honed tubes / internal honed with external hard chromium plate tube /  internal honed & hard chromium plate tube jis stkm 13c
( 2. ) high-carbon anti-friction bearing steel bar / hollow bar suj-2
( 3. ) induction hardening chromium plate bar sae 1045 / jis s45c / din ck45

For aluminum products:
( 1. ) aluminum alloy tubes for pneumatic cylinder a6063 t5
( 2. ) aluminum alloy profile tubes for pneumatic cylinder a6063 t5

For stainless steel products:
( 1. ) stainless steel chrome plate rods / grind rods type sus 303 / 304 / 316
( 2. ) stainless seamless steel honed tubes / extra-thin seamless steel tube sus 304 / 304l / 316 / 316l
( 3. ) stainless seamless / welded industrial steel pipes ASTM a312
( 4. ) stainless seamless / welded steel sanitary tubing ASTM a270