... resistant, have steel toe cap and steel plate)S1 standard (Antistatic, Shock-resistant, Anti-oil, Acid resistant, have steel toe ... cap )S1P standard (Antistatic, Shock-resistant, Anti-oil, Acid resistant, have steel toe cap ... , Acid resistant, have steel toe cap)S3 standard (Water proof, Antistatic, Shock-resistant, Anti-oil, Acid resistant, have steel toe cap ...