SAPPMA Releases 5th Edition of Technical Manual: Technical Manual 2017 The 5th edition of the Technical Manual compiled and published by SAPPMA (Southern African Plastic Pipe Manufacturers Association) has just been released. Jan Venter, Chief Executive Officer of SAPPMA, states that this publication is a valuable tool aimed at assisting designers and the end-users of plastic … [Read more...] about SAPPMA Releases 5th Edition of Technical Manual