... certification, ISO14001: 2004 certification, OHSAS18000 certification, etc. PLAYGROUND EQUIPMENT SPECIFICATION Materials& Part DetailsPLAYGROUND EQUIPMENT SPECIFICATIONMaterials& Part Details1,PLASTICImported LLDPE, rotational mould, anti ... and stability, thus ensuring high quality welding products. Artificial general factory welding, the welding speed, stem elongation, are all changing, it ...