... *Drilling machine *Forging machine*Assembling machine *Straightener Certification ISO9001:2000, BV (Pls see the photos in the following )Ability # width of ... grating ,galvanized steel parts etc .Quality standard *Certification : ISO9001:2000,BV,SGS *Code for design of steel structure :GB 50017-2003 ... resistant 13) Large use space 14) Save labor...... ISO9001:2000&BV steel building